Decompose Teen Numbers (3 minutes) Materials: (T) Hide Zero cards (Emphasize the breaking apart of numbers by separating the cards as the students say number the Say Ten way and the regular way.) T: (Showing 12.) Say the number the regular way. S: 12. T: Say 12 the Say Ten way. S: Ten two. Continue with the following possible sequence: 13, 14, 19, 11, 10, 15, 17, 16, 18. Problem (5 minutes) Gregory drew 10 smiley faces and 5 smiley faces. He put them together and had 15 smiley faces. Draw the 15 smiley faces as 10 smiley faces and 5 smiley faces. Then draw 15 with Hide Zero cards when the zero is hiding and when the zero is not hiding. Note: Word problems involving quantities above 10 begin in Grade 1. Many of the application problems in Module 5 are simply decomposition and composition experiences (K.NBT.1). Note that the problems do not ask, “How many in all?” or “How many?” Also note that there is no unknown in problems of this type. Development (28 minutes) Materials: (T/S) Place Value Cards: one 10 ten and numerals 1–9 both for the teacher and for each pair of students, at least 20 two-sided counters for each pair of students in a clear plastic bag (white beans spray painted red on one side, commercial two-sided counters, etc.), number bond template within a personal white board T: Here is Greg’s number with my Hide Zero Cards. T: Show Greg’s number with your 2-sided counters in the “total place” of your number bond. Make 10 ones a different color from the other ones. S: (Students do so.) T: Our number bond is not complete! We haven’t shown the parts!
Decompose Teen Numbers (3 minutes) Materials: (T) Hide Zero cards (Emphasize the breaking apart of numbers by separating the cards as the students say number the Say Ten way and the regular way.) T: (Showing 12.) Say the number the regular way. S: 12. T: Say 12 the Say Ten way. S: Ten two. Continue with the following possible sequence: 13, 14, 19, 11, 10, 15, 17, 16, 18. Problem (5 minutes) Gregory drew 10 smiley faces and 5 smiley faces. He put them together and had 15 smiley faces. Draw the 15 smiley faces as 10 smiley faces and 5 smiley faces. Then draw 15 with Hide Zero cards when the zero is hiding and when the zero is not hiding. Note: Word problems involving quantities above 10 begin in Grade 1. Many of the application problems in Module 5 are simply decomposition and composition experiences (K.NBT.1). Note that the problems do not ask, “How many in all?” or “How many?” Also note that there is no unknown in problems of this type. Development (28 minutes) Materials: (T/S) Place Value Cards: one 10 ten and numerals 1–9 both for the teacher and for each pair of students, at least 20 two-sided counters for each pair of students in a clear plastic bag (white beans spray painted red on one side, commercial two-sided counters, etc.), number bond template within a personal white board T: Here is Greg’s number with my Hide Zero Cards. T: Show Greg’s number with your 2-sided counters in the “total place” of your number bond. Make 10 ones a different color from the other ones. S: (Students do so.) T: Our number bond is not complete! We haven’t shown the parts!
GK-M5-B-Lesson_7.docx