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Peer reviewedMalpas, A. J.; Matthews, Geoffrey – Mathematics in School, 1975
An attempt to introduce subtraction of negative integers early in the secondary school curriculum is described. The attempt was not successful, and several aspects of the experiment are discussed. (SD)
Descriptors: Curriculum, Experimental Curriculum, Instruction, Integers
Bartolini, Pietro – Mathematics Teaching, 1976
An instructional sequence in which number lines and beads are used to illustrate addition and subtraction of directed numbers is described. (SD)
Descriptors: Addition, Elementary Education, Elementary School Mathematics, Instruction
Peer reviewedRiden, Chuck – School Science and Mathematics, 1975
Procedures for using a calculator to check addition and subtraction problems in bases less than 10 are described. (SD)
Descriptors: Addition, Calculators, Curriculum, Educational Media
Peer reviewedBennett, Albert B., Jr.; Musser, Gary L. – Arithmetic Teacher, 1976
Addition and subtraction of integers can be approached through the use of chips of two colors. (SD)
Descriptors: Addition, Curriculum, Elementary Education, Elementary School Mathematics
Peer reviewedGalbraith, Mary J. – International Journal of Mathematical Education in Science and Technology, 1975
Hypothesizing that subtraction of (negative) integers requires formal operations, the author describes a study of children's understanding of related concepts. The study involves the use of apparatus embodying properties of the number line. (SD)
Descriptors: Elementary Secondary Education, Instruction, Integers, Learning Theories
Weaver, J. F. – 1976
Limited systematic instruction was provided for two third-grade classes on a calculator-assisted approach to solving selected types of simple open addition and subtraction sentences involving three-place whole-number addends, moving from a Guess-and-Test procedure to more direct and efficient sentential transformations. Pupils exhibited a…
Descriptors: Addition, Calculators, Curriculum, Educational Media
Download full textLos Alamos Public Schools, NM. – 1974
This curriculum guide for grades K-6 is the first volume of a two-part series. It is meant to provide an ordered sequence of mathematical concepts from which teachers may organize an arithmetic program allowing for individual student progress with the greatest amount of individual attention. Each topic is arranged into levels based on the topic's…
Descriptors: Addition, Behavioral Objectives, Curriculum, Curriculum Guides
