SCIENCE · GRADES 6-8 · 30-35 MIN
Hallway Pace Lab: Physics & Rates lesson plan
Students time a calm walk over a measured distance, compute speed, graph it, and predict a longer walk.
At a glance
Time: 30-35 min
Grades: Grades 6-8
Subject: Science: Physics & Rates
Grouping: Pairs or threes.
Space: A straight 40-ft path.
Teacher prep: 10 min printing + 10 min taping
Included: Teacher guide, student sheet, checks for understanding, exit ticket with answers
Open the printable lesson: teacher guide and student sheet →
Essential question
How can you measure speed with your own body, and what does the data look like on a graph?
What students learn and show
Learn: Speed is a unit rate: distance divided by time; a distance-time graph's steepness shows speed.
Show: Compute speed from a measured walk and use it to predict time for a new distance.
Objectives
Measure a distance and time a calm-pace walk over it
Compute speed as distance divided by time
Plot and compare distance-time data
Predict a time for a longer distance and check it
Before this lesson students should: Division with decimals; plotting points on a coordinate grid.
Materials and prep
The 1:1 print
Stopwatches (phones)
Tape measures
Chalk
Clipboards
Prep (about 10 min to print, 10 min to tape)
Mark a straight 20-ft course and a 40-ft course with tape or chalk.
Check stopwatches. Remind students: steady walking pace only.
Space: A straight 40-ft path.
Grouping: Pairs or threes.
Ways to run it: Painter's tape on the floor; 1:1 printed floor plan
Lesson procedure
Teacher model: 'I walked 20 ft in 8 s. Speed = 20 / 8 = 2.5 ft per second. In 1 second I cover 2.5 ft.' Plot (0,0) and (8,20).
Guided practice: Pairs time one 20-ft walk, compute speed together, and check each other's division.
Teams tape-measure a straight printed hallway or wall run and chalk start/finish lines. Record the distance.
Each student walks the run at a steady, calm pace while a partner times it. Compute speed = distance ÷ time.
Repeat at a slightly slower steady pace. Compute again — note that both are walk-pace, deliberately.
Plot both walks as distance-time lines on the clipboard. What does a steeper line mean?
Challenge: predict the time for a longer printed run using your walking speed, then verify by walking it.
Checks for understanding
Ask: You walk 24 ft in 8 seconds. What is your speed? Look for: 3 feet per second.
Ask: On a distance-time graph, what does a steeper line mean? Look for: A faster speed.
Ask: Why did the longer-run prediction come close but not exact? Look for: Walking speed varies slightly; timing has error.
Exit ticket
You walk 30 ft in 12 s. What is your speed? Answer: 2.5 ft/s.
At that speed, how long will a 50-ft hallway take? Answer: 20 seconds.
Two lines on a graph: A is steeper than B. Who walked faster? Answer: A.
Scoring: 1 point each for items 1 and 3; 2 points for item 2 (method, answer). 3-4 secure.
Common misconception
Students may think: A bigger time means a faster walker.
Address it: Ask: who covered the same distance in less time? More time for the same distance is slower.
Supports and extensions
Learning support: Use one fixed distance, teacher-timed; the student computes speed with a calculator.
Multilingual learners: Sentence frame: 'I traveled ___ feet in ___ seconds, so my speed was ___.'
Mobility and access: Students can roll, walk with support, or time a rolling ball or toy car; computing and interpreting speed stays the goal.
Extension: Convert speeds to miles per hour and compare to a walking benchmark. Challenge: graph three students on one chart and interpret the steepest and shallowest lines.
Transfer task: A bus goes 30 miles in 45 minutes. What is its speed in miles per hour? (40 mph)
Spaced review: Next week: compare two runners' tables and decide who is faster without graphing.
Standards connections
CCSS 6.RP.A.3 (standard)
CCSS 8.F (domain-level practice)
Connections show which skills the activity practices. They are not a claim of full coverage; see the library for scope notes.
Why this approach
A 10-week program delivered by classroom teachers to 337 students in grades 3-6 (15 classes) improved spatial reasoning relative to standard mathematics instruction. Limit: The study measured spatial reasoning only, not mathematics achievement, and did not test this lesson.
Ready to teach it?
The printable version has the full teacher guide, a student recording sheet, prep steps and an exit ticket. Open the printable lesson →
Need the floor plan itself? Get a 1:1 print quote.
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