# Calling All Ninjas! Nine Ninja Books and Fun Math (and Motor) Activity

Do you have a child that loves ninjas or martial arts?  This is the place for you. I have nine awesome books to delight your little one and a fun way to incorporate math into martial arts. Get ready to turn your child into a math ninja!

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First, get your little ninja inspired by reading one of these stories:

## Activity:

Since ninjas must be agile, strong, and mentally sharp they must train their bodies and minds. This activity will have your child feeling like a ninja in training.

### Materials:

There are two options for materials. You can easily use stuff around your home or you can use martial arts gear.  To illustrate the activity, I used store bought gear. We had the items at home already!

### Option 2- Things around your home:

• Small square pillows to punch
• Bare hands
• Post-it notes (for the older kid version of this activity)

This activity is so simple! Give your child a math fact that he or she can do in his or her head. It may be simple addition, subtraction, multiplication, etc.; It all depends on your child’s math level. When your child provides the answer he or she must punch the bags in an alternating fashion the same number of times as their answer. If the answer was seven, your child would punch the bags seven times.

Another option for older kids who may get very large answers, is to assign one bag as the tens and one bag as the ones. You can even label the bags. So, if your child gets an answer of 95, s/he would punch the “tens” bag nine times and the “ones” bag five times. For children learning base ten concepts, this option may be useful.

You can make this activity even simpler for toddlers by just giving your child a number and punching the bags in that same quantity. If your child tries to punch too fast and thus punches too many times, slow your child down and show him or her how to accurately punch while saying each number (1, 2, 3…). It’s about having one punch for each number stated. Your child will be practicing one to one correspondence by doing this.

Keep giving your ninja math facts until you sense they are losing interest or breath.

# Squbed Game: Learning Squares and Cubes

When my son was in first grade he said to me that he wanted to learn “everything there is to know about math.”  He is now ten and his love of mathematics has not waned.  Mental math is of particular interest to him as he constantly challenges himself to solve math problems in his head.  To help him in his quest, I designed this very simple game to help him memorize squares and cubes of numbers up to twenty.  He wants to have these memorized so that he can tackle harder math problems mentally. I don’t even have these memorized, but he finds this kind of stuff fun, so I’m happy to help! If you have a kid who loves math, s/he may enjoy this game too

Materials:

• Squbed game boards (4 included)
• Number cards
• Squares and Cubes Guide
• Beans or other small objects
• Envelope to store the number cards
• Print Squbed materials here
• Note: Laminate materials if possible for durability

How to play:

1. Choose one Squbed game board.  This game can be played with up to four players.

2. Place the number cards in the envelope.

3. Players take turns picking out a number card randomly.  Each card contains a number squared or cubed.  For example, one card shows 2 squared. If a player has the equivalent value of the card (in this example: 4) the player should cover the square with a bean or other small object.

4. The first player who covers his or her entire board first is the winner.

Note:

• I included the square and cube guide to help facilitate play until the squares and cubes are memorized.
• I made each board a different color so that your child can keep track of which board or boards he or she used. After playing four times, with the four different boards, all of the squares and cubes will have been practiced at least once.

Have fun!