These One More One Less Baseball Activity Mats 1-20 provide a hands-on approach in helping children learn to count one more and one less than a given number from 1-20. This activity will help children with counting on and algebraic reasoning.

How to use this resource:

With this activity children will count one more than and one less than the number shown on the mat. They will need to find the correct number cards and picture cards, then put them in the correct place on each mat. This resource is a perfect way to review this skill in a math center, small group, 1-on-1, or independent setting! This would be a great addition to your kindergarten or 1st grade class. Parents, this would also be a fun activity to incorporate in your homeschooling curriculum. Activity mats are easy to prep and can be used year after year!

This product contains the following in both color and black and white:

►Activity mats for numbers 1-20

►22 Number Cards (0-21)

►22 Baseball Picture Cards (0-21)

Click the green preview button above to get a better view of this resource.

Instructions for assembly:

❶Print on cardstock and/or laminate for durability.

❷Cut apart number cards and picture cards.

❸Store cards in a plastic snack bag or pencil box.

Optional: Velcro can be attached to the empty boxes on the mats and on the back of the number and picture cards.

Common Core Standards covered by this resource:

✔K.CC.A.1 Count to 100 by ones and by tens.

✔K.CC.B.4 Understand the relationship between numbers and quantities; connect counting to cardinality.

✔K.CC.B.4a When counting objects, say the number names in the standard order, pairing each object with one and only one number name and each number name with one and only one object.

✔K.CC.B.4b Understand that the last number name said tells the number of objects counted. The number of objects is the same regardless of their arrangement or the order in which they were counted.

✔K.CC.B.4c Understand that each successive number name refers to a quantity that is one larger.

✔K.CC.B.5 Count to answer "how many?" questions about as many as 20 things arranged in a line, a rectangular array, or a circle, or as many as 10 things in a scattered configuration; given a number from 1-20, count out that many objects.

✔K.CC.A.2 Count forward beginning from a given number within the known sequence (instead of having to begin at 1).

✔1.OA.C.5 Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).

✔1.OA.C.6 Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).

Related Products:

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⭐ Baseball Number Activity Cards 0-20

⭐ Baseball Alphabet Match Activity Cards

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