What this lesson shows
A 9 by 4 foot garden shows 2 numbers but has 4 sides: 9 + 4 + 9 + 4 = 26 feet.
The worked example
The lesson works this one step by step: 9 by 4. Then your kid tries one like it on paper.
The steps
- A rectangle has 4 sides
- Opposite sides match
- Add all 4
- Write the unit
Helping at home
A rectangle shows two numbers but has four sides. Write the missing two: opposite sides match. Then add all four, and write the unit.
If your kid gets stuck
Opposite sides match.
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.