Comparing Products I

(NBT-Intermediate)

You need: a partner

a deck of cards

(remove J, Q, K, & 10s : A = 1)

paper for recording

20 counters

Directions:

  1. Each player gets half the deck of cards.
  2. Decide if the goal is going to be to get the smaller number or the larger number.
  3. Players flip 3 cards and create a 2 by 1 multiplication problem.
  4. Each player calculates their product and records it on their paper.
  5. The winning player for that round takes a counter.
  6. The first player with ten counters wins the game.

Comparing Products II

(NBT-Intermediate)

You need: a partner

a deck of cards

(remove J, Q, K, & 10s : A = 1)

paper for recording

20 counters

Directions:

  1. Each player gets half the deck of cards.
  2. Decide if the goal is going to be to get the smaller number or the larger number.
  3. Players flip 2 cards and find the product.
  4. Players compare their products.
  5. The winning player for that round takes a counter.
  6. The first player with ten counters wins the game.

Flip and Compare

(NBT-Intermediate)

You need: a partner

a deck of cards

(remove J, Q, K, & 10s : A = 1)

paper for recording

20 counters

Directions:

1. Each player gets half the deck of cards.

2. Decide if the goal is going to be to get the smaller number or the larger number.

3. Players flip 2 cards and create a two-digit number (tens and ones).

4. Players compare their values.

5. The winning player for that round takes a counter.

6. The first player with ten counters wins the game.

Extension: Have students increase the digits in their numbers: 3digits, etc.

Create A Number

(NBT-Intermediate)

You need: a place value mat

a set of 0-9 digit cards

Directions:

  1. Ask the student(s) to flip over 3 digit cards and create the largest (or smallest) number they can, placing the cards on the place value mat.
  2. Once the student ready, ask the student to read their number aloud.
  3. Listen carefully to ensure that the student reads using appropriate place value language and make any appropriate corrections. Ask the student how they know it is the largest value they can create.

Extension: Increase the number of digits-include the decimal point as appropriate.

Build That Number

(NBT-Intermediate)

You need: base ten blocks (or DigiBlocks)

a set of 0-9 digit cards

blank number line (optional)

Directions:

  1. Ask the student(s) to flip over 3 digit cards and create the largest (or smallest) number they can.
  2. Once the student is ready, ask the student to build their number using the provided blocks.
  3. Ask the student, “What is the next hundred?” and “What is the previous hundred?” and “Which hundred is your number closer to on the number line?”

Extensions:

  1. Increase the number of digits.
  2. Have the student place the number on the number line.

What’s My Number

(NBT-Intermediate)

You need: base ten blocks (or DigiBlocks)

an opaque container (paper bag)

a piece of paper (or dry-erase board) divided into 4 sections

Directions:

  1. Have the student label the four sections of their writing surface: drawing, standard form, word form, expanded form.
  2. Place 4 blocks in the container- they may be of different values.
  3. Have the student reach into the bag without looking and try to determine the value of the blocks.
  4. Ask the student to fill out the 4 sections of their writing surface.
  5. Allow the student to verify the value of the blocks by looking in the container.

Capture the Flash Cards

(NBT-Intermediate)

You need: a partner

a set of multiplication flash cards

Directions:

  1. Distribute the entire set of flash cards evenly between the players.
  2. Students flip their flash cards, write the equation, and compare the products.
  3. The student with the larger product captures both the cards from that round.
  4. If there is s tie, students flip another flash card and compare-the greater value takes all of the cards in play.
  5. Play continues until someone runs out of flash cards completely.
  6. The winner has all of the flash cards.

Array or Not

(NBT-Intermediate)

You need: a partner

4 sets of digit cards

graph paper & colored pencil

Directions:

  1. Student flips two digit cards and arranges them to form a two-digit number.
  2. Student attempts to create an array for that number on the graph paper.
  3. If the number is composite, have the student create as many arrays as possible, recording the factors inside the rectangular array drawn.
  4. Each array represented earns a point.
  5. If the number is prime, student earns no points.
  6. Play continues until someone reaches twenty points.
  7. The winner reaches 20 points first.

Decade, Century, & Millennium Numbers

(NBT-Intermediate)

You need: a 0-9 number die

paper & pencil

place value chart (optional)

Directions:

  1. Teacher decides what the student will multiply by (factors can be 10, 100, or 1000). Discuss vocabulary in activity title.
  2. Student rolls the die to get the other factor.
  3. Student multiplies the factors mentally and records the product on paper (or in a place value chart).

Questions to ask:

  1. What pattern do you see?
  2. What number come one (or 10, 100, 1000) before (or after) this number you created?
  3. How might you represent that number?

Zero to a Thousand

(NBT-Intermediate)

You Need: 0-1000 number charts

place value dice (1s, 10s, 100s)

Directions:

1.Student rolls the dice to create a three-digit number.

2.Ask the student to read the number aloud and locate the number on the 0-1000 charts.

3.Ask the student: “What is 20 more (or less) than your number?”

“How many to the next (or previous) 100?”

“Is it closer to ___ or ___?”

“What would a representation look like?”

“How many 100s, 10s, and 1s in your number?”

Heaping Handfuls

(NBT Intermediate)

You Need: something you can grab by the handful (unit blocks, pennies, pasta, marbles, etc.)

a container to hold the objects

paper and pencil

Directions:

1.Title your paper “Handfuls of _____” (fill in the blank with the item you are using).

2.Create three columns and label one “right hand” , one “left hand”, and the third “combination”.

3.Grab a handful with one hand, count and record on your sheet.

4.Grab a handful with the other hand, count and record on the paper.

5.Find the total grabbed and record.

6.Repeat the experiment several times and record and observations you may have.

Read It, Draw It, Split It

(NBT-Intermediate)

You Need: a piece of paper divided in fourths

a pencil

base-ten blocks (optional)

place value dice

Directions:

1.Label the top left section “word form”.

2.Label the top right section “drawing”.

3.Label each of the bottom two sections “addend”.

4.Roll a number with the place value dice and record it in the center of the paper-circle it.

5.Fill in the sections of your paper appropriately.

6.In the bottom two sections you may choose any two addends you wish, as long as their sum is the number circled in the center of your paper.