Five pages about the big idea of 1st grade place value: ten ones make one ten. On page 1 students circle groups of ten loose pictures, then write how many tens, how many ones are left and the number. Page 2 shows base-ten blocks with too many ones, like 1 ten 13 ones; students circle ten of the ones, trade them for a ten and write the new tens and ones (2 tens 3 ones = 23). Page 3 is the decade numbers: count the tens rods and write 4 tens = 40, then draw a stick for each ten to show 60 and 80. Page 4 goes the other way: break one ten into ten ones and write the new tens and ones, so 34 is 3 tens 4 ones and also 2 tens 14 ones. On page 5 students circle every picture that shows the number; the pictures left over have the digits swapped or are a ten off. Each page starts with a worked example.
Before page 1, give each table a pile of straws or craft sticks and rubber bands. Students bundle tens and say the number: "3 bundles and 4 loose sticks is 34." Then unbundle one and count again: "2 bundles and 14 loose sticks is still 34." Base Ten Blocks, on the table or on the screen, do the same job for pages 2 to 5. For page 3, count by tens together as you lay down each rod.
Count a pile of dry pasta, coins or cereal by making groups of ten in cups. How many cups? How many loose ones? What number is that? Then pour one cup out and ask if the number changed.
This pack supports the following Common Core State Standards for Mathematics:
© Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.
A 5-page place value pack for 1st grade about what a ten is. Circle groups of ten pictures and write the tens, the ones and the number. Circle ten ones in a picture of base-ten blocks and trade them for a ten, so 1 ten 13 ones becomes 2 tens 3 ones. Count tens rods to write the decade numbers 20 to 90, and draw a stick for each ten. Break a ten into ten ones to see that 34 is 3 tens 4 ones and also 2 tens 14 ones, then circle every picture that shows a number. Every page comes in color and in black and white. Answer keys included.
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