Counting Blocks 1-20 Worksheet

Trace and form the numerals 1 through 20.

Represent a given number with the matching quantity of colored blocks.

Connect a written numeral to its corresponding count of objects.

Assign the pages out of numerical order if desired, since each page's two numbers are non-sequential (for example, page 1 pairs 8 and 5) rather than progressing 1, 2, 3 in order.

Use the larger numbers, 17 through 20, as a check for students who have mastered smaller quantities, since they appear on later pages rather than at the very end of the set.

Have students trace the number first before coloring, following the printed two-step instruction on every page, to build numeral formation and quantity representation together.

Numeral tracing — students trace each printed number from 1 to 20 to practice numeral formation.

Quantity representation — students color the number of blocks that matches a given numeral, connecting a written number to a counted set.

One-to-one correspondence — coloring one block per unit counted reinforces matching a number name to an exact quantity.