Materials: various 3D geometrical figures, paper lunch bags, poster with pictures/names of figuresPlace one 3D figure in each lunch bag. Fold over the tops. Have a child reach inside without looking and describe what they feel (“I feel twelve corners and six sides”). Have them guess the name of the figure by comparing what they feel to the pictures on the poster. Have them feel, describe and name each figure in each bag. For older children, introduce appropriate geometrical vocabulary (“I feel twelve vertices and eight faces”). 
Family Math Learning Events
Content for these family math learning events comes primarily from the SMTE courses at Texas A&M University Corpus Christi. Dr. Elaine Young developed many of the activities to support elementary education majors’ efforts to create and modify fun and engaging math lessons for grades K8 students.
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Memory Match Up
Play Number Memory Match Up!
Playing games allows your child to learn, practice and reinforce many useful skills such as following directions, taking turns, and making predictions. Try this new twist to the traditional memory game to help your kindergartner match number symbols to the correct quantity while sharpening her memory skills!
What You Need:
 20 index cards
 Stickers
 Colored markers
What You Do:
 You and your child can work together to make the game cards. First make the ten numeral cards. Using markers, write the numerals from 1 – 10 on each card.
 Next, have your child help make the ten quantity cards. You can use small stickers or draw pictures to show the quantities. For example, place 5 stickers on an index card. This is the quantity card to match the numeral card for the number 5.
 Once all of the game cards have been made it’s time to begin playing Number Memory! Mix up the cards thoroughly. Lay the cards on the floor or on a tabletop in rows. Make 4 rows with 5 cards in each row.
 Have your child turn over two cards. If the cards are a match (a card with the numeral 3 written on it and a card with a picture of 3 objects), she has a match and can keep the pair. If the cards are not a match, both cards must be turned over and returned to their original positions. Then the next player takes a turn.
 Keep playing until all of the matches have been found.
Your kindergartner will not only practice matching number symbols to quantities, but she will fine tune her memory skills as well. To challenge your child as she matures, change the memory game to a basic facts memory game. Instead of having numeral cards, make cards for basic addition facts such as 2 +3 =, 2 + 2 =, 1 + 3 =, etc. Your child will find the quantity that completes each addition fact!
Bubbles
Bubble Geometry
Have you ever seen a square bubble?
Experiment with bubbles. Create bubble wands out of found objects (straws, pipe cleaners, strawberry baskets and coathangers) and have your own bubble festival.
How can you catch a bubble?
The secret is the soap solution. Try catching a bubble with a dry hand versus a wet hand. Which lasts longer?
Geodesic Gumdrops

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Science Explorer
Get messy with ExploraGoo and Outrageous Ooze! Get airborne with the Fabulous Foam Flyer! Get loud with the Water Gong or Straw Oboe!
From the archive: 1996
Geometry Around the House
Shapes Around the House
CONCEPTS Identify, sort, and characterize 3dimensional shapes found around the houseMATERIALS Items from around the house that represent 3dimensional geometric figures (rectangular prisms, cubes, cones, cylinders, spheres)ACTIVITY Display 510 items found in the house Have the child sort the items by geometric figure type (rectangular prisms, cubes, cones, cylinders, spheres) Have the child describe why they sorted the items into these categories Have the child compare and contrast the characteristics of the items1st Grade TEKS 1.6(B) describe and identify 3dimensional geometric figures including spheres, rectangular prisms (including cubes), cylinders and cones 1.6(C) describe and identify 3dimensional geometric figures in order to sort them according to a given attribute using informal and formal language 
Formas alrededor de la Casa
CONCEPTOS Identificar, clasificar, y caracterizar las formas de 3 dimensiones encontradas alrededor de la casa.MATERIALES Artículos alrededor de la casa que representan las figuras geométricas de 3 dimensiones (prismas rectangulares, cubos, conos, cilindros, esferas)ACTIVIDAD Muestre 5 – 10 de los artículos encontrados en la casa Haga que el niño clasifique los artículos usando la figura geométrica, por ejemplo, prismas rectangulares, cubos, conos, cilindros, esferas Haga que el niño describa por qué clasificó los artículos en estas categorías Haga que el niño compare y contraste las características de los artículosTEKS Primer Grado 1.6(B) Describir e identificar figuras geométricas de 3 dimensiones incluyendo las esferas, prismas rectangulares (cubos incluyendo), los cilindros y los conos 1.6(C) Describir e identificar figuras geométricas de 3 dimensiones para clasificarlas según una cualidad dada usando lenguaje informal y formal. 
Soma Cubes
Soma Cubes
Soma cubes include seven playing pieces that can be assembled to form a cube and other figures.Piet Hein, a Danish poet and scientist, conceived the SOMA cube in 1936. The name SOMA is after the addictive drug in Aldous Huxley’s novel A Brave New World. There are hundreds of figures that can be made using the Soma cube blocks. Visit this page and click on the number notations across the top to visit Thorleif’s pictures.
All figures by Thorleif Bundgaard 
Birthday Cards
Birthday Cards
1 
2
3 6 7 10 11 14 15 18 19 22 23 26 27 30 31 
4
5 6 7 12 13 14 15 20 21 22 23 28 29 30 31 
8
9 10 11 12 13 14 15 24 25 26 27 28 29 30 31 
16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 
With the five cards above, you can guess anyone’s birthday!
Make the five separate cards by writing the numbers on a 3×5 card. Give the five cards to your friend, and ask them to hand you the cards that contain the number date of their birthday.
You secretly and quickly add up the first number on each of the cards your friend hands back to you. The sum is their birthday date — in base two! Remember that base two counts whether or not you need the place values 1, 2, 4, 8, 16, 32, etc to sum up the number. By picking the cards, your friend has indicated that the place value at the top of those cards will have a face value of one. The cards they did not pick are those that will have a face value of zero. Practice with a partner until you can find your answer quickly. Then surprise all your friends! 
More about base 2