LER 1331
squares after the number in blue. When you reach the tenth square, ask
for student responses. Continue this activity with other numbers, until
students understand how to find "ten more" on the number board.
Grades K-2
Simple Addition and Subtraction
As an extension to the activity above, the number board can also be
used to introduce basic addition and subtraction. Explain how two num-
bers can be "combined", or added together, to make a bigger number, or
a sum. Ask students for suggestions in finding the sum of 2 + 3. After a
discussion, cover the first number (2) in blue. Count to 3, and cover the
squares after the blue one in red as you count (1, 2, 3). The last num-
ber covered is the sum, 5! Continue this exercise with other addition
problems.
Now explain to children that amounts can also be "taken away", or sub-
tracted, from larger numbers. Use the number board to illustrate a sub-
traction problem like 6-4. Cover the 6 with a blue tile, and count back,
covering the four numbers before the 6 with red tiles. When the chil-
dren have counted to 4, the number they cover is the answer!
(6 - 4 = 2). Continue this exercise with other subtraction problems.
Patterns and Graphs
Use the reverse side of the number board for additional patterning
activities. Ask the children to follow a pattern or see what designs they
can create on their own!
Create bar graphs by grouping tiles into rows and columns on the back
of the number board.
For additional 100’s Number Board activities, try LER 0337, 1-100
Activity Book.
Number Patterns
Sequencing Skills
Basic Math Concepts
Place Value
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Also from Learning Resources:
LER 0373 1-100 Combination Kit
LER 0377 1-100 Activity Book
LER 0193 Opaque Counters
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