Multiplication and division - Divide by 3 - Presentation

In a mathematics lesson focused on the concept of division, specifically dividing by 3, students are introduced to two fundamental methods: sharing and grouping. The lesson begins with a discussion to recap the differences between these methods, setting the stage for practical application. Students are then presented with a series of engaging activities where they must circle counters in groups of three and complete the associated division problems. For example, they are asked to divide numbers like 18 and 6 by 3, reinforcing their understanding through visual and hands-on exercises.

The lesson continues with more complex scenarios where students apply their division skills to real-life situations. They are tasked with dividing items such as pieces of fruit and marbles between bowls or jars, ensuring an equal share among the three containers. In one activity, students determine that 15 pieces of fruit, when shared between three bowls, result in 5 pieces per bowl. Another activity involves sharing 30 marbles between three jars, with students concluding that there would be 10 marbles in each jar. Further exercises include dividing hair bands and doughnuts into packs of three, helping to solidify the concept of division by grouping. The lesson concludes with reasoning questions that encourage students to compare and contrast the methods of sharing and grouping, deepening their comprehension of the division process.