Virginia SOL K.NS.1.j
The Standard
Group a collection of up to 100 objects (e.g., counters, pennies, cubes) into sets of ten and count by tens to determine the total (e.g., there are 3 groups of ten and 6 leftovers, 36 total objects).
Virginia Standards of Learning for Mathematics · The student will utilize flexible counting strategies to determine and describe quantities up to 100.
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students organize a mixed collection into groups of 10, then identify any objects left over. They count the full groups by tens and continue with the leftovers to name the total.
What Mastery Looks Like
- Given a collection, a student makes accurate groups of 10 without skipping or reusing objects. The student can say, “4 tens and 7 more makes 47,” and check the count.
Common Misconceptions
- Students may make groups that do not contain exactly 10, or leave objects ungrouped before forming all possible tens. Some count four groups as 4 instead of 40. Others name 3 tens and 6 more as 63.
How to Assess It
- Give each student 34 counters and four ten-frames. Say, “Make groups of 10, then tell me the total and how you know.”
Lesson moves
Ways to Teach It
Give pairs 58 linking cubes to build trains of 10, count the trains by tens, then count the loose cubes.
Show 42 counters grouped by tens and ask, “How do the groups help you know the total without counting every counter?”
Play Grab and Group: students draw a number card, collect that many counters, make tens, and earn a point for naming the total.
Have students sort 67 classroom pencils into bundles of 10, then label the number of bundles, extras, and total pencils.
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Printable K.NS.1.j Worksheet
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Related Standards
- 1.NS.1.g
Count by ones, fives, or tens to determine the value of a collection of like coins (pennies, nickels, or dimes), whose total value is 100 cents or less.
- 1.NS.1.e
Group a collection of up to 120 objects into tens and ones, and count to determine the total (e.g., 5 groups of ten and 6 ones is equal to 56 total objects).
- K.NS.1.a
Use one-to-one correspondence to determine how many are in a given set containing 30 or fewer concrete objects (e.g., cubes, pennies, balls), and describe the l...
- 2.NS.4.b
Count by ones, fives, tens, and twenty-fives to determine the value of a collection of mixed coins and one-dollar bills whose total value is $2.00 or less.
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