Second Grade Math Kit

Find the activities below that correspond with the materials found in our Second Grade Math Kit. Please select the material before selecting the grade to make sure your search results only provide activities for the mats in your Second Grade Math Kit.

Absolute Value

Have a student stand on a negative number of their choosing. Ask them what the absolute value is of that number. Then ask them to jump to that number counting their jumps, first counting down to 0 from where they are standing and then when they pass zero count up until they reach the absolute value of the original number. Have two students stand on either side of the one on the mat with their arms straight over head imitating the absolute value symbol lxl while the student on the mat recites what the absolute value of the number they picked is. “The absolute value of [-3] is 3.”
Grade 6

Opposites

Have one student stand on a positive number on the mat. Ask another student to stand on its opposite. Have both students jump to zero while each counting their jumps simultaneously.

Grade 6

Adding Thousandths

Take a thousandths block. Figure out where to put the thousandth block on the mat. How do the numerals at the top of the mat change after a thousandth has been added to the thousandths place? Continue adding thousandths until there are ten thousandths blocks. What happens to the hundredths place? What happens to the hundredths place? Bundle 10 thousandths to make 1 hundredth and move the bundle to the hundredths place. Change the numbers on top accordingly.

Grade 6

Prime Factorization

Pick a composite number and place it at the top edge of the mat. Have students find two factors for the number. If the factor is a prime number, leave it face up. If it is a composite number, find two factor cards of it and place them beneath the composite factor on the mat, and then turn over the composite factor. Continue until the only factors showing are prime numbers.

Grade 6

Not a Factor

The teacher places products around the edge of the mat. Students try to fill the board with numbers that are not factors of their corresponding products.

Grade 4, Grade 5, Grade 6

Find My Products

As a challenge, have one group of students set up the entire board, first laying out products in the middle, then filling in the factors along the edge. When complete, have them remove all of the product cards from the board. Have a second group of students try to figure out what products were there based on the factors. Then switch group tasks, giving each group a chance at each task.

Grade 4, Grade 5, Grade 6

Greatest Common Factor – Factor Fun

Place two products on the edges of the mat (e.g. 24, 18). Have students place the prime factors of 24 beneath it in the factors squares. (Break down larger factors as needed.) Then ask if any of those factors are also factors of 18. If they are leave them on the mat, if not take them off. Have students multiply all the factors that are left on the mat to get the Greatest Common Factor.

Grade 6

Multiplying to Divide Fractions

Use the mat to explain how to divide fractions by fractions.

  • Have students gather around the mat. Start by asking: “What is 1/2 ÷ 1/4?” Explain: “This means: How many 1/4s fit into 1/2?
  • Have students find and stand around the 1/4 column on the mat.
  • Then look over to the 1/2 column together and visually see how many 1/4 spaces fit into 1/2 — pointing out that two 1/4s fit into 1/2. So, 1/2 ÷ 1/4 = 2.
  • After they see the visual, use a whiteboard to show mathematically how 1/2 ÷ 1/4 is the same as 1/2 x 4/1 or 1/2 of 4.
  • Repeat the process with different fractions by finding them on the mat first and then solving them mathematically.
Grade 6, Grade 7

What is the rate?

Introduce students to the idea of a ratio and how it can be written as a fraction (a/b), and how that relates to the unit rate (“for each 1”). Write out cards with real-world scenarios on them. Have a student draw a card. Examples:

  • “You bought 5 apples for $10. What’s the unit rate per apple?”
  • “A smoothie recipe uses 2 cups of strawberries for every 3 cups of yogurt.”

Students must find the corresponding ratio on the mat (e.g., 2/3 for strawberries to yogurt) and step onto that space.

Grade 6, Grade 7

Supplement me or Complement me?

Have a student roll two dice. Have them put together the two numbers to make a two digit number they’ll use as their angle. Then have them jump to either the supplementary or complementary space on the mat. Ask a second student to figure out what the supplement/complement to the original angle (from the dice) would be.

Grade 7

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