Add To Favorites
Learning addition and subtraction facts? Use Crayola® Model Magic® to make base 10 sticks. What a great learning tool!
Find out about the world’s different number systems. Discover the Arabic, Chinese, Egyptian, Gothic, Greek, Roman, and Sanskrit number systems. The decimal system, which is what is used in the United States and most other countries today, probably arose from counting on 10 fingers. Our ancestors counted on their fingers until they reached 10, made a mark in the sand, then continued to count on their fingers.
Bones found in Africa, dating to 37,000 years ago, have 29 evenly spaced notches on them. These were tally sticks. Anthropologists think these represent the number of days in a moon cycle. In a hunter/gatherer society, it is possible that tallies were kept to record how many days were spent in one location. After a certain number of days, the hunters/farmers would move on, perhaps to conserve resources.
Cut the straws. To make a tally system with base 10 sticks, cut a plastic drinking straw into 10 equal lengths. Use the 1/10 length to measure and cut additional straws into 2/10, 3/10, 4/10, 5/10, 6/10, 7/10, 8/10, and 9/10 lengths. An uncut straw will equal 10/10. Cut enough straws so that you have several of each length.
Mix Model Magic colors. Use Crayola Model Magic to color code each length. Make 10 colors of Model Magic. To create 10 colors, blend two or more colors of the modeling compound together. For example: Mix blue and yellow Model Magic to make green. Mix yellow and red to make orange. Mix red and blue to make purple. Add white Model Magic to orange to make a light orange. Add white Model Magic to blue to make a lighter blue. Make a lighter green and a lighter red using the same method.
Make a chart with Crayola Fine Tip Markers indicating what color each length will be.
Prepare the sticks. Roll out each Model Magic color into a thin layer. Carefully wrap each straw length with its designated color. Cover the ends of the straws. Gently press each stick on a flat surface to create four flat sides and two flat ends.
Carefully use a craft stick to indent notches representing 1/10 on each of the four sides. For example, the "two" stick will have one notch in the middle. The "three" stick will have two evenly spaced notches. Air-dry all of your base 10 sticks overnight.
Add and subtract! Use the base 10 sticks to help solve addition and subtraction problems. When adding, place the sticks end to end, from left to right, to make a train. Find a single rod to match the length of the train. The addends are the cars of the train. The sum is the single rod that matches the train length. When subtracting, place the smaller rod on top of the larger one. See what length rod is needed to make a matching train. The difference is the rod that fills that gap.
Students challenge their classmates to solve base 10 problems.
Explore how Lane Smith’s illustrations contribute to the mood created by the words of Jon Scieszka in their book, The Ma
Add To Favorites
Display the 7 principles of Kwanzaa in a one-of-a-kind accordion window book.
Create a 3-D braille chart simply with Crayola® School Glue, Markers and paper.
People around the world give thanks for their food. Celebrate a harvest of pineapples, pumpkins, or pomegranates-and sho
Engage your students in deep understanding of ratio & proportion without them even knowing! Use the children’s book “Chu
Challenge students to learn their spelling words in a slippery way. Use Crayola® Gel Markers to make a wiggly worm!
Imagination and problem-solving go to work as children check out real bugs and create their own.
Vivaldi inspires paintings incorporating symbols of the seasons.
Our crayons have been rolling off the assembly line since 1903, and you can see how it’s done.
Visit us »