ERIC Number: ED094991
Record Type: Non-Journal
Publication Date: 1965
Reference Count: N/A
Mathematics for the Elementary School, Unit 12, Addition and Subtraction.
Pedoe, Daniel; Pedoe, Mary
The Minnesota School Mathematics and Science Teaching (MINNEMAST) Project is characterized by its emphasis on the coordination of mathematics and science in the elementary school curriculum. Units are planned to provide children with activities in which they learn various concepts from both subject areas. Each subject is used to support and reinforce the other where appropriate, with common techniques and concepts being sought and exploited. Content is presented in story fashion. The stories serve to introduce concepts and lead to activities. Imbedded in the pictures that accompany the stories are examples of the concepts presented. This unit introduces the child to various tools which can help him to visualize and understand the operation of finding a sum or a missing addend. Extensive manipulations on a number line and with a simple slide rule are prescribed in order to help the child gain a concrete feeling for addition on the number line. The communtative and associative properties of addition are developed from these number line activities. Exercises with nomographs provide additional work on the above topics. Worksheets and commentaries to the teacher are provided and additional activities are suggested. (JP)
Publication Type: Guides - General
Education Level: N/A
Sponsor: National Science Foundation, Washington, DC.
Authoring Institution: Minnesota Univ., Minneapolis. Minnesota School Mathematics and Science Center.