Preview · the opening missionRead this to the class:
At sports day, two friends compared their standing long jumps. Priya's card said 1.4 m. Kai's card said 1.35 m. "I won!" said Kai. "Thirty-five is way bigger than four." Priya was sure she had landed further, but she couldn't explain why. The sports day judge has to give out the ribbon. Your team's job: measure your own jumps, write them as decimals, and find out who really jumped further.
Teams of three, with jobs that rotate after each jump: Jumper (jumps or slides the beanbag), Measurer (reads the metre stick at the back of the heel), Recorder (writes the jump three ways).
Look inside the PDF
Sample pages, stamped “preview”. The download is the clean, full lesson.
In the full lesson PDF
7 printable pages
- Predict (5–10 min)
- Hunt (20 min)
- Reveal (10–15 min)
- Act (10 min)
- Background for the teacher
- Assessment
- Student sheet
- Worksheet: Label it
- Worksheet: Try it at home
On the student sheet
- My prediction
- My jumps
- Our team's best jumps, in order
- What did we find?
- My note to the judge
- Exit ticket
- Label it
- Try it at home
US Letter, prints cleanly in black and white. The student sheet is on its own page, ready to photocopy.
Free with an account (any 3 lessons), or US$19 for all 4 lessons in this unit.
What students show by the end
- Measures and records a decimal
- Relates tenths and hundredths
- Compares decimals
From the lesson’s rubric, which scores each one as not yet, getting there or got it.
Questions teachers ask
How long does “Who jumped further, 1.4 m or 1.35 m?” take?
50–60 min. Group size: teams of 3.
How much prep does it need?
10 minutes: choose a flat stretch of grass or a gym floor with mats, at least 3 m long for each team. Mark a take-off line for each team with chalk or tape, and lay a metre stick or a 3 m measuring tape beside the landing area, starting at the line. Indoors, or if jumping isn't possible, teams slide a beanbag along the floor from the line instead.
What materials do I need?
Metre stick or 3 m measuring tape marked in centimetres; chalk or masking tape for the take-off line; beanbag (for the indoor or no-jump version). Cost: free with metre sticks and chalk or tape you already have.
Which curriculum standards does it cover?
Common Core Math (US): 4.NF.C.5 (partly), 4.NF.C.6 and 4.NF.C.7.
What’s in the lesson PDF?
A teacher guide that walks you through predict, hunt, reveal, act, background for the teacher and assessment, then a student sheet (“My prediction”; “My jumps”; “Our team's best jumps, in order”; “What did we find?”; “My note to the judge”; “Exit ticket”; “Label it” and “Try it at home”) on its own page, ready to photocopy. It’s US Letter and prints cleanly in black and white.
Can I try it for free?
Yes. A free account includes any 3 full lessons of your choice, and this can be one of them. After that, this unit is US$19 for all 4 lessons, yours to keep, or every lesson is US$199 a year.