The tiles · Grades 4 to 5
Brick
Fraction addition as length: fix the wall
Play it now
A wall with a gap. Which bricks fill it exactly? A half and a fourth, or three fourths.
Hand the phone over, or play it here. A few minutes, then it hands the phone back.
Play BrickWhat your child does
A brick wall with a course missing some length, and a tray of bricks labelled with fractions: a half, a fourth, three eighths. Your child drags bricks into the gap until it is filled exactly. A brick that is too long will not go in; a gap left short is not a wall.
Adding fractions becomes laying lengths end to end. A fourth and a half fill the same gap as three fourths, which is what unlike denominators mean before anyone writes a common one. Later courses use mixed numbers, then decimals, on the same wall.
What it teaches
- Halves, thirds and fourths
- Whole numbers as fractions
- Adding fractions, same denominator
- Mixed numbers
- Adding fractions, unlike denominators
- Adding and subtracting decimals
Mistakes it recognises as your child plays
- Adding the tops and adding the bottoms
- Subtracting mixed numbers without regrouping
- Adding decimals without lining up the point
See what it finds.
Brick is also one of the games in the five-minute fractions: equal parts, equivalence, adding check, which plays several tiles, picks the next problem from the last answer, and names the pattern it sees.
The other tiles
Stacks · Carry · Make Ten · Chart · Odometer · Time · Fraction · 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