Science · 1st Grade · Patterns in the Sky · Weeks 10-18

The Sun's Daily Path

Students track the sun's movement across the sky to identify daily patterns.

• Common Core State Standards
• 1-ESS1-1

About This Topic

The sun's apparent journey from east to west across the sky is one of the most observable patterns in nature, and first graders are well positioned to investigate it directly. Standard 1-ESS1-1 asks students to use observations at different times of day to identify patterns in the movement of the sun, moon, and stars. While the sun's movement looks like travel across the sky, students gradually build toward understanding that what they are observing is the effect of Earth spinning on its axis, which makes it look like the sun is moving when they are the ones doing the moving.

For first graders, the key skills are observation, recording, and pattern recognition. By tracking where the sun appears at different times, always starting low in the east, rising to its highest point at midday, and then lowering toward the west, students accumulate evidence for a predictable daily cycle. This pattern is directly connected to shadow direction and length: as the sun's position changes throughout the day, shadows change in length and direction in a corresponding way.

Active learning makes this topic especially memorable because students can physically mark the sun's path using their own shadows outdoors. The Earth-and-flashlight body model then helps them understand why the pattern happens, giving them the cause behind the effect they have been observing.

Key Questions

1. Explain why the sun appears to move across the sky each day.
2. Predict the sun's position at different times of the day.
3. Analyze how the sun's position affects shadows throughout the day.

Learning Objectives

• Identify the sun's general position in the sky (e.g., east, south, west) at specific times of the day (morning, noon, afternoon).
• Compare the length and direction of shadows cast by the same object at different times of the day.
• Explain, using a model, why the sun appears to move across the sky.
• Predict the approximate position of the sun in the sky at a given time of day based on observed patterns.

Before You Start

Basic Observation Skills

Why: Students need to be able to observe and describe what they see in their environment.

Understanding of Time (Morning, Noon, Afternoon)

Why: Students must have a basic concept of different times of day to track the sun's changing position.

Key Vocabulary

Sun	The star at the center of our solar system that provides light and heat to Earth.
Shadow	A dark area created when an object blocks light from a source, like the sun.
East	The direction where the sun appears to rise in the morning.
West	The direction where the sun appears to set in the evening.
Noon	The middle of the day, when the sun is typically highest in the sky.

Watch Out for These Misconceptions

Common Misconception

The sun actually moves across the sky while the Earth stays still.

What to Teach Instead

It is the Earth spinning underneath us that makes the sun appear to move. A student spinning in a chair while looking at a fixed lamp on one side of the room demonstrates clearly that when you spin, all the objects around you seem to move even though they are staying perfectly still.

Common Misconception

The sun is directly overhead at noon everywhere in the United States.

What to Teach Instead

While the sun is at its highest point at solar noon, it is not directly overhead in the continental US. That only happens in the tropics. Students observing their shadows at noon will notice the shadow points roughly north, not directly underneath them, which is a productive observation to discuss.

Common Misconception

The sun rises in exactly the same spot every single day.

What to Teach Instead

The sun's exact sunrise and sunset positions shift slightly throughout the year because of Earth's tilt. At the first-grade level it is accurate to say the sun rises in the east as a general pattern, while noting that students tracking it over several weeks might notice small changes in its precise position.

Active Learning Ideas

Simulation Game: Human Sundial

On a sunny day, students go outside at three different times: 8-9 AM, midday, and 2-3 PM. They stand in the same spot while a partner traces their shadow with chalk. At the end of the day the class compares the three traces and describes how shadow direction and length changed as the sun's position changed.

60 min·Pairs

Inquiry Circle: Sun Tracking Log

Over several days, students use a simple picture chart to mark where the sun appears in the sky at morning arrival, during lunch, and at afternoon dismissal. After three days, small groups compare their charts and describe the consistent pattern they found across all observation days.

15 min·Small Groups

Think-Pair-Share: Why Does the Sun Move?

After observing the sun's daily path, ask students whether the sun is moving or whether something else is happening. Students think individually, pair to build an explanation together, then share. The teacher follows up with a globe-and-flashlight model to demonstrate how Earth's rotation creates the observed pattern.

20 min·Pairs

Gallery Walk: Morning, Noon, and Afternoon

Post three photos of the same outdoor scene taken at different times of day, showing distinct shadow lengths and directions. Students walk around and arrange the photos in chronological order on a timeline strip, then write a one-sentence explanation for their ordering choice.

20 min·Individual

Real-World Connections

• Architects and city planners consider the sun's path and shadow patterns when designing buildings and public spaces to maximize natural light and minimize heat gain.
• Farmers use their knowledge of the sun's daily path to orient crops for optimal sunlight exposure, understanding how different plants grow best with morning or afternoon sun.
• Sailors and navigators historically used the sun's position to determine direction and time before the invention of modern GPS devices.

Assessment Ideas

Exit Ticket

Provide students with a drawing of a simple object (e.g., a stick figure) and a clock face. Ask them to draw the shadow of the object at 9 AM, 12 PM, and 3 PM, labeling the direction (e.g., left, under, right) and relative length (short, medium, long).

Discussion Prompt

Ask students: 'Imagine you are standing outside at noon. Where is the sun? Where is your shadow? Now imagine it is late afternoon. How has the sun changed its position, and how has your shadow changed?' Encourage them to use the terms east, west, and shadow direction.

Quick Check

During outdoor observation, ask individual students to point to where the sun is in the sky and describe the direction and approximate length of their shadow. Provide immediate feedback on their observations and vocabulary use.

Frequently Asked Questions

Why does the sun appear to move across the sky each day?

The sun is not moving relative to us in any way we can notice. What we see as the sun traveling is actually the Earth spinning. As our part of the Earth rotates to face the sun in the morning and then rotates away in the evening, the sun appears to travel from east to west across the sky.

Where does the sun rise and set?

The sun rises in the east and sets in the west, though the exact position shifts a small amount depending on the time of year. This east-to-west path is consistent every day because the Earth spins in the same direction every single rotation.

How can active learning help students understand the sun's daily path?

Outdoor shadow tracking gives students personal, ongoing data they collect themselves. When a student sees their own morning shadow pointing west and their afternoon shadow pointing east, it is concrete evidence they own. Body modeling with a spinning globe and a flashlight then provides the explanatory why behind their observed what.

How do shadows help track the sun's position throughout the day?

A shadow always points directly away from the light source. A morning shadow, when the sun is in the east, points west. An afternoon shadow, when the sun is in the west, points east. Tracing shadows at different times of day is essentially a way of mapping the sun's position without ever looking directly at it.

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