6-8
In Parts I and II of this investigation, students learn about the notion of equivalence in concrete and numerical settings. As students begin to use symbolic representations they use variables as place holders or unknowns. This part of the i-Math investigation illustrates the continued transition from the concrete balance view of equivalence to a more abstract view.
3-5, 6-8
Use this tool to strengthen understanding and computation of numerical expressions and equality using a balance scale.
3-5
In this lesson,
students use operations of whole numbers and/or fractions to determine the
precise numbers of three types of dried beans needed to make salads. The use of
manipulatives and partner activities provide differentiation and support
learning for students of varying abilities.
3-5
Division
is one of the most difficult operations for students to master, in part,
because there are many steps to keep track of and students often do not
understand the mathematical reasoning behind each step. In this lesson,
students will apply the strategies behind division, and learn how those strategies
can be translated into mathematical steps.
3-5
This hands-on lesson uses the book,
A Remainder of One, by Elinor J. Pinczes, to introduce division with remainder. Students will enjoy the story context as they explore different remainder situations and model division with arrays.
3-5, 6-8
The rules of Krypto are amazingly simple — combine five numbers using
the standard arithmetic operations to create a target number. Finding a
solution to one of the more than 3 million possible combinations can be
quite a challenge, but students love it. And you’ll love that the game
helps to develop number sense, computational skill, and an
understanding of the order of operations.
3-5
In this lesson, students apply their knowledge of addition equations to create number sentences using an electronic balance tool.
3-5
In this lesson, students participate in an activity in which they
conduct a survey, analyze and summarize the data they collect, and draw
conclusions from their findings. This lesson plan was adapted from the
article "Picture This" by Marty Hopkins, which appeared in
Teaching Children Mathematics, February 1998, vol. 4, no. 6, pp. 354-59.
3-5
Students determine the amount of each ingredient needed to make brownies, and then they figure out how to divide the brownies evenly among their classmates. This lesson helps students reinforce their measurement skills in a practical situation.
3-5
Students investigate the ways shapes can be divided into equal pieces
with one or two cuts. The lesson provides a review of the following vocabulary
terms:
square, triangle, and rectangle; congruent, one-half, and one-fourth.
The other lessons in this unit build on this introductory lesson.
