• March 1: Peanut Butter Lovers Day

Make peanut butter and jelly sandwiches, but with a math twist. If your child can't eat peanut butter, use cream cheese instead. Use cookie cutters or a knife to make shape sandwiches. Cut out triangles, circles, rectangles, and hexagons. As you do, ask your child to name each shape and count the sides.

• March 2: Dr. Seuss's Birthday

Celebrate Dr. Seuss's birthday by playing a shape game with The Cat in the Hat.

• March 3: Ramp and Roll

Get a small ball and two books. Put something under one end of a book, so it slants to form a ramp. Put something bigger under the other book, so it slants even more. Measure how far the ball rolls down each of the ramps. Compare the distances. Ask your child, "Why did one ball roll farther than the other?"

• March 4: Find the Day

What day of the week does March 31 fall on? Give your child a calendar to find out. What about the last day of next month?

• March 5: Tally ho!

Go on a color hunt with your child, and show her how to make a tally to keep track of her finds. Ask your child to pick a color, and then find as many things around the house that are that color. Give her a time limit. When the time is up, ask her to count her tally marks.

• March 6: What's in the Bag?

Get five objects that are easy to tell apart. Show your child the objects. Talk about what they are and count them together. While your child's eyes are closed, put two of the objects in a bag. Ask her, "How many are in the bag?" and then "What is in the bag?"

• March 7: Scoop and Guess

Fill a bowl with cereal that is made up of pieces that are the same size, such as Cheerios. Ask your child to scoop out a spoonful and guess how many pieces of cereal are on the spoon. Now tell him to count them to check her guess.

On International Children's Day of Broadcasting Day, broadcasters around the world are showing quality programming for or about children. Sit down with your child to watch a favorite PBS KIDS show. Afterward, visit pbskids.org to play a game on the show's website.

• March 9: Pots and Tops

Get four different sized pans with lids. Put the lids on one side of a table and the pots on the other. Now, ask your child to put each lid on its matching pot. You can also do this with plastic storage containers.

• March 10: Number 10

Kids love to count along with the classic rhyme Ten Little Monkeys Jumping on a Bed. Check out a version from your library, and read it with you child. This is a great way for kids to get practice counting from 1 to 10 — forward and backward!

• March 11: Johnny Appleseed Day

Go apple picking with Curious George. In this online game your child will also learn about sequencing numbers.

• March 12: More Apple Fun

Introduce your child to the concept of fractions by cutting up an apple. First cut it into two halves and then into four quarters. Ask your child to "put the apple back together again" by re-assembling the halves or quarters into a whole.

• March 13: Math on the Go!

Counting games are a fun way to pass the time when you are on a car trip with your child. For example, see who'll be the first to find 10 trucks, 6 blue cars, or 9 hotels. You can also count out-of-state license plates.

• March 14: More Math on the Go!

Play a guessing game. Think of a number and give your child clues, such as, "I am thinking of a number between 10 and 40. You say it when you count by 10's. It is not 20.

• March 15: Measuring Months

Make a list of the months. The letters of each month should be directly under those of the previous month, so you can accurately compare their lengths. Give the list to your child and ask, "Which month has the longest name?", "Which has the shortest name?", and "Are any names the same length?"

• March 16: Balancing Rocks

Your child uses a pan balance in this online game to help May weigh different kinds of rocks in Sid the Science Kid's Super-Fab-Lab.

• March 17: St. Patrick's Day

Ask your child to draw two three-leaf clovers. How many leaves are there all together? Draw a third one. Now how many leaves? Draw two more. Count by threes and find out how many leaves there are now.

• March 18: Looking for Rectangles

How many rectangles can you find around the house? Give your child a pencil and paper, and ask him to make a mark for every rectangle she sees (e.g., book, table top, window pane, etc.).

• March 19: More or Less

Does March have more or less days than April? What about September? Give your child a calendar to find out.

• March 20: First Day of Spring

Celebrate spring by planting grass, but not in a garden! Make eggshell people with grass "hair." Give your child an empty eggshell with the top third removed. Ask her to draw a face on it. Fill it with potting soil and sprinkle grass seed on top. Keep the soil moist. When the "hair" begins to grow, measure it every few days.

• March 21: Growing Up and Down

Introduce your child to spatial vocabulary such as under, above, up, and down . Talk with your child about how some plants grow down, under the ground (e.g., carrots and potatoes) and some plants grow up, above the grown (e.g., corn and tomatoes).

• March 22: What's next?

Ask your child to tell you which season comes after spring. What season is before spring?

• March 23: Home Collections

Invite your child to collect two or three different kinds of items from around the house or outdoors. Put them all in a container, and then help her sort them into groups by type (e.g., pencils, coins, buttons, rocks, leaves, etc.). Get more sorting ideas here.

• March 24: Skip Counting

Challenge your child to count to 24 by twos.

• March 25: More Skip Counting

Ask your child to count to 25 by fives, both forward and backward!

• March 26: Minute Run

If it's a nice day, your child can get some exercise and also learn about measuring time. On your driveway or sidewalk draw a chalk line. Draw another one about 12 feet away. Tell your child you want her to run back and forth between these lines for a minute.

• March 27: Number Order

On index cards, write the numerals from 1 to 10 (one numeral per card). Mix them up and spread them out on a table. Ask your child to line the numerals up in order from smallest to largest. Then ask her to line them up from largest to smallest.

• March 28: Matching Numbers

On index cards, write the words for the numbers 1 to 10, one number word per card. On another set of index cards write the numerals for the same numbers. Invite your child to match the numerals to the words ( e.g., "7" to "seven"). For younger kids, use dots instead of words.

• March 29: Number Memory

Turn all 20 index cards from yesterday's activity face down. Invite your child to play a number memory game. Ask him to turn over two cards at a time and find all the numeral/number word pairs (e.g., the card with the "7" is a match for the card with the number word "seven".

• March 30: Pencil Day

Today is National Pencil Day! The pencil was invented in 1895. The pencil also makes a great measuring tool if you don't have a ruler handy. Ask your child to use a pencil to measure his bed. Then have him measure the bed with something else of a different length, a book for example. Why are the measurements different?

• March 31: Number Riddles

Play a number riddle game with your child. Say, "I am thinking of a number. When you add "1" to it , you get "6". What's my number?" Now ask your child to think of a number riddle for you to solve.