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How Light Travels Lesson Plan (TEKS 5.8C): A Complete 5E Lesson for Reflection, Refraction, and Absorption

Stick a pencil in a clear glass of water and look at it from the side. The pencil looks broken right at the surface. Take it out and it's a perfectly straight pencil. Put it back. Broken again. Every 5th grader who sees this leans in. "Wait. What just happened?"

What happened is the light traveling from the underwater part of the pencil bent when it crossed from water into air on its way to your eyes. That bending of light is called refraction, and it's one of the three things the TEKS spells out for this standard. Light travels in straight lines until it hits something. Then it either bounces off (reflection), bends as it passes through (refraction), or gets soaked in and turns into heat (absorption). Three options. Every situation involving light fits one of them, or some combination of all three.

If I were teaching this to 5th graders, I'd run a quick mirror, water, and black paper rotation on day one before I ever said the word "refraction." That's how this 5E lesson for TEKS 5.8C is built. Engage, Explore, Explain, Elaborate, Evaluate. Every phase has kids watching light do something with their own eyes.

10 class periods 📓 5th Grade Physical Science 🧪 TEKS 5.8C 🎯 Differentiated for D + M 💻 Print or Digital

Inside the How Light Travels 5E Lesson

The 5E instructional model walks students through five phases: Engage, Explore, Explain, Elaborate, and Evaluate. It flips the traditional lecture-first sequence on its head. Students explore a concept hands-on before you ever explain it, which means by the time you do explain it, they have something to hook the vocabulary onto.

I switched to the 5E model years ago and stopped going back. Kids retain more, ask better questions, and stop staring at you waiting to be told the answer. The How Light Travels 5E Lesson is built on this framework from start to finish. Here's how it plays out across the five phases.

🎯 Engage

📷 Engage image — objective slide OR word wall card

Day one is a teacher-led hands-on hook with three quick stations: a flashlight and a small mirror, a clear plastic cup of water with a pencil in it, and two pieces of construction paper (one black, one white) sitting in the sun or under a heat lamp. Groups rotate through all three in about 15 minutes. They draw what they see at each station on a student sheet.

By the end of the period, kids have witnessed reflection, refraction, and absorption with their own eyes. No vocabulary lecture yet. That's the point. They're walking into the rest of the unit with three vivid mental images to hook the words onto.

What's included in the Engage:

  • Teacher directions for the three-station rotation
  • Printable student observation sheet
  • Answer key for the discussion questions
  • Four learning objective slides (standard verbatim, key verbs highlighted, "I CAN...", and "WE WILL...")
  • An illustrated Light Word Wall in English and Spanish covering the full unit vocabulary

🔬 Explore

📷 Explore image 1 — wide shot of Station Lab in action

The How Light Travels Station Lab is the heart of the Explore phase. Students rotate through 8 stations (plus a 9th challenge station for early finishers) over one class period. The Station Lab is split into four input stations (where kids take in new information) and four output stations (where they show what they learned).

The four input stations:

  • 🎬 Watch It! — Students watch a short video on how light travels and answer guided questions.
  • 📖 Read It! — A one-page reading passage at two differentiated levels, with a Spanish version included.
  • 🔬 Explore It! — A hands-on station with flashlights, mirrors, a prism, and a clear cup of water where students see reflection and refraction in action.
  • 💻 Research It! — Reference cards covering rays, reflection, refraction, absorption, transparent versus translucent versus opaque, and how surface color and texture affect light.

The four output stations:

  • 📋 Organize It! — A 12-card sort where students place everyday scenarios under reflection, refraction, or absorption.
  • 🎨 Illustrate It! — Students draw a diagram of a light ray hitting an object and being reflected, refracted, and absorbed.
  • ✍️ Write It! — Three open-ended questions in complete sentences (this is where you see who really gets it).
  • 📝 Assess It! — A short formative check with multiple choice and a fill-in-the-blank vocabulary paragraph.
📷 Explore image 2 — close-up of featured station (Explore It! or Organize It!)

Print and digital versions are both included. If you want the full breakdown of what happens at every single station, what students produce, and how to set it up, that's in our dedicated Station Lab post.

Read the full How Light Travels Station Lab walkthrough 8 stations, materials list, teacher tips

The Station Lab is included in the full 5E lesson. You don't need to buy it separately if you're getting the whole unit.

📚 Explain

📷 Explain image 1 — Presentation slide screenshot

Here's the real payoff of doing the Engage and Explore before the Explain: by the time kids hit this phase, they've already watched light bounce, bend, and get absorbed with their own eyes. They have a working understanding before you ever start naming things. The discussions get deeper, the questions get sharper, and you spend less time defining and more time pushing their thinking.

The How Light Travels Presentation walks 5th graders through the full scope of TEKS 5.8C, one concept at a time. The deck opens with a quick reset on what light is (a type of energy that travels in a straight line from a source until it hits something) and introduces the word ray for that straight-line beam. From there the deck builds out the framework: when a ray hits a material (called a medium), one of three things happens (or some combination of all three).

📷 Explain image (middle) — Presentation slide screenshot (classification hierarchy, Essential Question, or category comparison)

Students learn that reflection is when light bounces off a surface. The classic example is a mirror. Light from your face travels in straight lines to the mirror, bounces back, and reaches your eyes so you see your reflection. The lesson covers what affects how much light gets reflected: surface type (smooth surfaces bounce light cleanly while rough surfaces scatter it in every direction), surface color (light colors reflect more, dark colors reflect less), and surface material (glass and metal reflect a lot, wood and fabric reflect very little). Curved surfaces (concave like the inside of a spoon, convex like the outside of a ball) reflect light at angles that make images look distorted, smaller, or upside down.

Then the deck digs into refraction, which is when light bends as it moves from one medium to another (air to water, air to glass). The pencil-in-the-cup illusion lives here, and a prism is the showstopper. White light hitting a prism slows down and splits into all the colors of the rainbow because each color bends a different amount. A rainbow in the sky is the same thing happening on a much bigger scale with raindrops doing the bending. Absorption is when light energy doesn't pass through or bounce off. Instead, it gets soaked into the material and usually turns into heat. The black T-shirt on a sunny day is the example every 5th grader gets. Dark colors absorb more light than light colors, and rough or thick materials absorb more than smooth or thin ones.

The lesson finishes with how materials let light pass through. Transparent materials (a clear window, clear glass) let almost all the light pass through, so you can see clearly. Translucent materials (wax paper, frosted glass, a shower door) let some light through but blur it. Opaque materials (a wall, a textbook, a piece of dark paper) block all the light from passing, which is why they cast crisp shadows. Color works the same way. The color you see is the wavelength of light reflecting off the object. A red apple reflects red light and absorbs the rest. A white shirt reflects all colors. A black shirt absorbs all colors.

📷 Explain image 2 — Presentation slide screenshot

What makes the How Light Travels Presentation different from a typical light slideshow is that kids are doing something on almost every single slide. It's not a lecture deck. It's a participation deck. "Your answer:" prompts appear on most slides, Brain Breaks reset attention every few slides, Quick Action INB tasks (matching scenarios to reflection, refraction, or absorption, sorting materials as transparent, translucent, or opaque) show up throughout, and Think About It prompts push deeper into real engineering scenarios like choosing the right glass for classroom windows. The deck closes with a Check for Understanding tied back to the Essential Questions about how light travels in straight lines and what happens at each interaction.

The Explain materials in this product include:

  • An editable Presentation at two differentiated levels (Dependent and Modified), works in PowerPoint or Google Slides
  • A guided fill-in-the-blank student notes handout that mirrors the Presentation, with answer key
  • A Paper Interactive Notebook (English and Spanish) students cut, fold, and glue into their notebooks
  • A Digital Interactive Notebook at both levels with answer keys, for 1:1 classrooms or Google Classroom

The Explain runs across two class periods. The built-in Think About It prompts are where the real discussion happens, so let those breathe.

🛠️ Elaborate

📷 Elaborate image — Student Choice Project board or sample student work

The Elaborate phase is where students stretch what they learned about how light travels and put it into a project of their choosing. In this 5th grade physical science lesson, that's a Student Choice Project board with six different project options plus a "design your own" pathway.

Students might design a periscope using mirrors and reflection, build a shoebox theater that uses transparent, translucent, and opaque materials to create shadow effects, write a kid-friendly mystery story where the clues all involve light behaving in unexpected ways, or film a short video showing reflection, refraction, and absorption examples they spot at home. There are options for kids who love to write, kids who love to draw, kids who love to build, and kids who love to perform. Whatever the project, the point is the same: students apply rays, reflection, refraction, absorption, and material types to a real-world artifact instead of a worksheet.

Choice is the whole point. By letting students pick how they show their thinking, you get more authentic work for TEKS 5.8C and you actually get to see what they understand about light.

The rubric (the part teachers actually want)

Every project, no matter which option a student picks, is graded on the same shared rubric. Five categories at 20 points each:

  • Vocabulary (20 pts) — At least four words from the lesson are used in context.
  • Concepts (20 pts) — At least two key concepts from the lesson are referenced.
  • Presentation (20 pts) — The project grabs attention and is well-organized.
  • Clarity (20 pts) — Easy to understand. Free of typos.
  • Accuracy (20 pts) — Drawings and models are accurate. The science is right.

Two differentiated versions in one file

The standard version is for students ready for independent application of light concepts. The Reinforcement version is for students who need additional vocabulary or concept support. Three of the six options are swapped for projects with a tighter vocabulary tie-in, and "design your own" is replaced with "collaborate with the teacher" so kids aren't pitching cold.

✅ Evaluate

The Evaluate phase wraps the unit with a formal assessment. It's not all bubble-in. Several questions hand students a real-world image (a mirror, a straw in a glass, a black shirt in the sun) and ask them to identify which light interaction is happening and explain why.

The full assessment has 12 questions across five formats:

  • Multiple choice (4 questions) covering rays, reflection, refraction, absorption, and transparent versus translucent versus opaque
  • Hotspot / visual (2 questions) where students circle the image that shows refraction and describe what's happening
  • Multiselect (2 questions) where students pick all the materials that are translucent (or all the surfaces that reflect well)
  • Short answer (2 questions) on why dark clothes feel warmer in the sun and why a pencil looks broken in water
  • Multipart scenario (2 questions) with a classroom debate where kids identify which student's explanation of a light interaction is correct and explain why

A modified version is included for students who need additional support. Fewer multiple-choice distractors, sentence-starter scaffolds on the short-answer items.

If you've taught all five phases, this assessment shouldn't surprise anyone. It's a chance for kids to show you they get it.

How everything fits together

If you want the whole experience (Engage hook, the Station Lab as the Explore, the Explain day with Presentation and interactive notebook, the Student Choice Elaborate, and the Evaluate assessment all in one download), that's the How Light Travels Complete 5E Science Lesson.

If you only need the one-day hands-on activity, the Station Lab works as a standalone. Most teachers buy the full 5E because the Station Lab works harder when it's bookended by a strong Engage and a follow-up Explain. But both are honest options.

Two options
How Light Travels Complete 5E Lesson cover Full 5E Lesson — ~10 class periods $13.20 Get the 5E Lesson
How Light Travels Station Lab cover Just the Station Lab — 1–2 class periods $7.20 Get the Station Lab

What you need to teach How Light Travels (TEKS 5.8C)

Materials beyond what's in the download:

  • Small flashlights for the Engage and Explore (one per group)
  • Small mirrors (compact mirrors, mirror tiles, or hand mirrors), one per group
  • Clear plastic cups, water, and pencils or straws for the refraction station
  • Construction paper in black and white for the absorption station, plus a thermometer or your hand to feel the difference
  • A small prism (optional, but a great visual for splitting white light into colors)
  • Pencils, colored pencils or markers, and printed student pages
  • A device with internet for the Watch It! station and the slide deck

Standard covered: Texas TEKS 5.8C — Demonstrate and explain how light travels in a straight line and can be reflected, refracted, or absorbed. See the full standard breakdown →

Grade level: 5th grade science

Time: About 10 class periods of 45 minutes each, done with fidelity. The product also ships with a compressed sample unit plan if you need to move faster.

Common misconceptions this lesson clears up

  • "Light bends around corners on its own"

    Light always travels in a straight line. It never bends around corners by itself. The only ways light changes direction are when it bounces off something (reflection) or passes through one substance into another like air to water (refraction). If light seems to "go around" a corner, what's really happening is the light bounced off a surface to get there.

  • "Only mirrors reflect light"

    Almost everything reflects some light. That's how we see things. The reason you can see your desk is because light is bouncing off the desk and into your eyes. Mirrors are extra-good at reflecting because they're smooth and shiny, so they bounce light back in a clean direction. Other surfaces (a wall, a piece of paper, a desk) reflect light too, just messier and in lots of directions at once.

  • "A pencil really breaks when it goes in water"

    The pencil isn't broken. It just looks bent because the light coming from the part underwater bends as it moves from water into air to reach your eyes. That's refraction. Take the pencil out and it's perfectly straight. The bending is happening to the light, not to the pencil. Same with a straw in a soda or a coin at the bottom of a swimming pool.

  • "All colors of clothes get equally warm in the sun"

    Dark colors absorb a lot more light than light colors do. A black T-shirt absorbs almost all the sunlight that hits it and turns that energy into heat. A white T-shirt reflects most of the sunlight back, so it stays cooler. That's why people wear light colors in summer and dark colors in winter. Same sunlight, very different amounts of absorption depending on the color.

What's included in the How Light Travels 5E Lesson download

📷 Inside-the-product — add screenshot of Read It passage or sample answer sheet

When you buy the How Light Travels Complete 5E Lesson, you get a single download with the whole unit:

  • Engage materials — teacher directions, student observation sheet, answer key, four learning objective slides, illustrated Light Word Wall (English + Spanish)
  • The full Station Lab — 8 stations + 1 challenge, print and digital, two reading levels, Spanish Read It!
  • Explain materials — editable Presentation at two differentiated levels (with built-in Brain Breaks, Quick Action INB tasks, and Think About It prompts), guided fill-in-the-blank student notes handout with answer key, Paper Interactive Notebook (English + Spanish), Digital Interactive Notebook at two levels with answer keys
  • Elaborate (Student Choice Projects) — 6 project options + design-your-own, plus a Reinforcement version with vocabulary-focused alternatives, rubric included
  • Summative assessment — full 12-question version and modified version with sentence-starter scaffolds, both with answer keys
  • Sample unit plan — day-by-day pacing guide

A couple of real-talk tips from running this lesson

1. Darken the room for the flashlight stations.

5th graders see the light beam way better when the room is dim. Close the blinds, kill the overhead lights, and let the flashlights do the work. The reflection and refraction stations land twice as hard.

2. Have kids predict before each Engage station.

Before they shine the flashlight at the mirror, ask, "What do you think the light will do?" Their wrong answers are the bridge to the right ones. The surprise is where the learning lives.

3. Bring the absorption station outside if you can.

Real sunlight on real construction paper makes the temperature difference dramatic. If outside isn't an option, a desk lamp held close to the paper for 60 seconds will do the trick.

Get the How Light Travels 5E Lesson

Or if you only need the one-day hands-on Station Lab:

(The Station Lab is included in the full 5E Lesson)

Frequently asked questions

Does this cover all of TEKS 5.8C?

Yes. The full standard is addressed across all five phases, with the "demonstrate and explain" verbs baked into the Explore and Elaborate activities.

What do my students need to know before this lesson?

A basic understanding of light as a form of energy from earlier grade-level standards. If your kids can describe what a light source is (the Sun, a lamp, a flashlight), they're ready.

How long does it take to teach?

Done with fidelity, about 10 class periods of 45 minutes each. One day for the Engage hook, two days for the Station Lab, two days for the Presentation and Interactive Notebook, three days for the Student Choice Project, and one to two days for review and the assessment. The product also ships with a compressed sample unit plan if you need to move faster.

Do I need special supplies?

Just flashlights, small mirrors, clear cups, water, and black and white construction paper. A small prism is a nice add-on if you have one. Most teachers already have everything on hand.

Does this work for digital classrooms?

Yes. Every component has a digital version. The Station Lab is fully digital-ready (Google Slides), the Presentation works in Google Slides, and the Student Choice Projects can be submitted as videos, slide decks, or written work.

Is this 5E lesson aligned to NGSS too?

Yes. It aligns most directly with 4-PS4-2 (developing a model to describe that light reflecting from objects and entering the eye allows objects to be seen). Built TEKS-first, but the standards overlap heavily.