ADDITION CHARTS AND COMBINATION CARD EXERCISES c. Passage from Chart III to Chart IV (the Half Chart) Materials: …box of combination cards …Control Chart I and IV (which has only sums) …paper Exercise: In the same way as the child passed from Chart I to Chart II, a group activity may […]

## Passage From Addition Chart II to Chart III

ADDITION CHARTS AND COMBINATION CARD EXERCISES b. Passage from Chart II to Chart III (the Whole Chart) Materials: …box of combination cards …paper …Control Chart I and III (which has only sums) Exercise: The child fishes for a combination. He reads it and writes it down on his paper. What is […]

## Passage From Addition Chart I to Chart II

ADDITION CHARTS AND COMBINATION CARD EXERCISES a. Passage from Chart I to Chart II A group of children or individual children may copy Control Chart I or the teacher may make up 36 pink rectangles which are the dimensions of the space for the combinations. Let’s see how many combinations we […]

## Games and Exploration: Changing Order of the Addends

GAMES AND EXPLORATION USING BEAD BARS e. Changing the Order of the Addends Aim: to give the concept of the commutative property of addition (although it is not named as such at his age) Materials: same as above Presentation: The teacher sets up an addition of two numbers, and the child […]

## Games and Exploration: Sums Greater Than Ten

GAMES AND EXPLORATION USING BEAD BARS d. Sums Greater Than Ten Materials: same as above Presentation: As before, the child combines two or more numbers, whose sum will be greater than ten. The colored bead bar is placed below the ten bar to facilitate counting. For example: A child chooses 14 […]

## Games and Exploration: Sums Less Than Ten

GAMES AND EXPLORATION USING BEAD BARS c. Sums Less Than Ten Materials: …ten bars …colored bead bars …box of signs for operations Presentation: The teacher sets up an addition of two numbers, using colored bead bars and the plus and equals signs. the child reads the problem, computes the addition problem […]

## Games and Exploration: Bead Bars: Snake Game

GAMES AND EXPLORATION USING BEAD BARS b. The Snake Game Control of Error: As before, the child controls his work by matching. The ten bars and reminder bead bar (if any) are grouped together to one side. The colored bead bars from this snake are arranged in hierarchic order. the large […]

## Games and Exploration: Bead Bars: List of Materials

GAMES AND EXPLORATION USING BEAD BARS a. Complete List of Materials Materials: …Snake Game reminder beads, without the bridge …box of ten bars …box of colored bead bars (9 of each) …box containing signs for the operations +, -. x, /, =, () …Addition Chart I

## Addition Strip Board – Doubles of Numbers

STRIP BOARD (including doubles) g. Doubles of Numbers Materials: addition strip board and strips paper Control Chart 1 Exercise: We find the doubles of numbers by taking a blue strip: 1 and the same second addend; the pink strip for 1. The strips are placed on the board, and the combination […]

## Combinations of One Number With Zero As an Addend

STRIP BOARD (including doubles) f. The Combinations of One Number with Zero as an Addend Materials: addition strip board and strips paper Control Chart 1 and /or Chart II (45 combinations) Exercise: Let’s find all of the combinations that make 9. 0+9=___? Our first addend is zero, so we place nothing […]