Virginia SOL 2.NS.1.a
The Standard
Represent forward counting patterns when counting by groups of 2 up to at least 50, starting at various multiples of 2 and using a variety of tools (e.g., objects, number lines, hundreds charts).
Virginia Standards of Learning for Mathematics · The student will utilize flexible counting strategies to determine and describe quantities up to 200.
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students count forward by twos from different even starting numbers through at least 50. They show the pattern with objects, jumps on a number line, or marked cells on a hundreds chart.
What Mastery Looks Like
- A student can start at an even number such as 8 and count forward by twos without errors. The student can show that each number is 2 more using objects, a number line, or a hundreds chart.
Common Misconceptions
- Students may restart at 2 instead of continuing from 8 or 14. They may add 1, include odd numbers, or skip an even number.
How to Assess It
- Exit ticket: Start at 14. Show six forward jumps of 2 on a number line, then write every number you land on.
Lesson moves
Ways to Teach It
Give each pair 30 counters; start with 8, add two counters at a time, and record each new total through 30.
Students compare sequences starting at 6 and 12, then write two ways they are alike or different.
Play Chart Chase: call an even start, and students cover the next six numbers by moving two spaces at a time on a hundreds chart.
Count classroom supplies packed in pairs, such as shoes or gloves, and label the running totals as each pair is added.
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Printable 2.NS.1.a Worksheet
A ready-to-print activity worksheet aligned to 2.NS.1.a, with an answer key for the teacher on its own page. No account needed.
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Related Standards
- 1.NS.1.c
Represent forward counting patterns when counting by groups of 5 and groups of 10 up to 120 using a variety of tools (e.g., objects, coins, 120 chart).
- 2.NS.1.d
Represent forward counting patterns when counting by groups of 100 up to at least 1,000 starting at 0 using a variety of tools (e.g., objects, number lines, cal...
- 1.NS.1.d
Represent forward counting patterns when counting by groups of 2 up to at least 30 using a variety of tools (e.g., beaded number strings, number paths [a prelud...
- 2.NS.1.b
Represent forward counting patterns created when counting by groups of 5s, 10s, and 25s starting at various multiples up to at least 200 using a variety of tool...
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