![]() ![]() To decompose a number is to break that number (whole) into parts to make smaller numbers. What Is Number Composition and Decomposition?Ĭomposing a number is putting together two numbers (two parts) to make a larger number (whole), like joining 2 and 4 to make 6. Sylwia used a game and real-life problems to make this big math idea meaningful for the children. They are engaged in a math experience about composing and decomposing the number 6. Sylwia and the children are not just having fun playing musical hoops. ” “Two.” A child exclaims, “Two and four is six!” ” Children complete her sentence: “Four.” “And the other part has. Th e teacher continues, “Oh, wow! We made another combination of the number six!” She represents this combination on the board using dots and numerals while the children count the dots with her. Sylwia then asks the whole group, “And how many are we all together?” The children call out, “Six!” “Adrian,” Sylwia asks, “what combination did we make this time? How many do we have in each hoop?”Īdrian counts the number of children in his hoop including himself, then counts the other hoop, replying, “Four and two.” Sylwia supports her dual language learners by translating key phrases into Spanish, such as “cuatro y dos.” The music stops, and the teacher and children each step into a hoop. The music starts again, sending the group galloping around once more. ![]() This time, they all gather into one hoop. ![]() When Sylwia pauses the music, the children know to scatter and find a spot in one of the two hoops. They sing along to a familiar tune playing in the background. Five preschool children and their teacher, Sylwia, are galloping around two Hula Hoops placed in the center of the rug. ![]()
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