This lesson uses the children's literature book One Watermelon Seed in a hands-on activity reinforcing counting, patterns, skip counting and problem solving. It can be used as a whole class activity with students working in pairs to do the counting.
After introducing this lesson, any counting book can then be used in a math center or station with extension questions to create a new problem solving activity.
Included are the lesson notes, a place value chart and a counting mat that students use with 1" tiles. Base ten blocks are recommended for this activity.
Common Core Standards:
1.OA.1 Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
1.OA.2 Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
1.OA.3 Apply properties of operations as strategies to add and subtract.
1.OA.5 Relate counting to addition and subtraction (e.g., by counting on 2 to add two.
1.OA.6 Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten, decomposing a number leading to a ten, using the relationship between addition and subtraction and creating equivalent but easier or known sums.
1.NBT.1 Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.
1.NBT.2 Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:
• 10 can be thought of as a bundle of ten ones—called a “ten.”
• The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.
• The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones.