Six pages of igloos built from snow blocks, the bottom row longest and each row above it shorter. Pages 1 and 2: count the blocks in each row, write each count in the box beside its row, and add the column to find how many blocks in all (three rows within 20 on page 1, four rows up to 50 on page 2; the first igloo is an example). Page 3: the blocks are numbered from the bottom row up, left to right, by 2s, 5s or 10s; write the missing numbers. Pages 4 and 5: cut out the blocks with adding (or subtracting) facts and glue each onto the igloo block that shows its answer. Page 6: build igloos from a rule, 2 fewer blocks each row on grid paper and 1 fewer in a table, then find the bottom row that makes an igloo of 30 or 28 blocks. The tunnel at the side of each igloo is not a block.
Build an igloo first with linking cubes or paper squares: a row of 8, then 6, 4 and 2 on top. Pages 1 and 2 show adding three or four numbers: look for a pair that makes 10 first. The cut-and-glue pages make a calm math center, and the rule page works well with a partner, one building and one adding.
Stack blocks, books or snowballs in rows that get shorter as they go up, and count each row together. On the skip-count igloo, say the numbers out loud as your child points to each block.
This pack supports the following Common Core State Standards for Mathematics:
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Igloos built of snow blocks in rows, each row shorter than the one under it, for adding several numbers, skip counting and planning by a rule. Students count and add the rows, number the blocks by 2s, 5s and 10s, glue fact blocks onto their answers and build igloos on grid paper from a rule.
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