The tiles · Kindergarten to grade 1
Make Ten
Number bonds, and making ten to add
On the way This tile's page is up; the playable version follows.
What your child does
A ten-frame with some of its pips lit, and a question at the top: 7 and what make 10? Your child taps a card and it flies into the blank. Right, and the empty cells light up to complete the ten. Wrong, and it springs back.
Later rungs pair cards that make ten, then use the ten to add: 8 + 5 becomes 8 + 2 + 3. That is the move every later carry depends on, played until it is quick.
What it teaches
- Breaking apart numbers to 10
- Making ten to add
- Subtracting through ten
- Two-digit plus one-digit, carrying
This one is teaching ground: the board either comes right or it does not, and there is no wrong rule to name. The tiles that follow it do the diagnosing.
The other tiles
Stacks · Carry · Chart · Odometer · Time · Fraction · Brick · Rectangle
Cardinal Math watches for all of these, every day.
Inside the app the same patterns are caught as your child plays, across the whole of K to grade 5, and explained to you in plain words. One price, no ads, no streaks. Coming to iPhone and iPad.
Tell me when it's out