What this lesson shows
A garden triangle has sides of 5, 7, and 8 feet. 5 + 7 + 8 = 20 feet of fence, in any order.
The worked example
The lesson works this one step by step: sides of 5, 7, 8 feet. Then your kid tries one like it on paper.
The steps
- Perimeter: all the way around
- Add every side
- Any order
- Write the unit
Helping at home
Add the length of every side, in any order you like. Write the unit after the total.
If your kid gets stuck
Add every side.
Watch it with Lux
With Lux, this lesson is a narrated video and a printed page your kid works on. Then Lux helps with the same math on their own worksheet, one question at a time.