Steffe L. P., Hirstein J. & Spikes C. (1976) Quantitative comparison and class inclusion as readiness variables for learning first grade arithmetic content. Technical Report No. 9. ERIC Document Reproduction Service No. ED144808. Project for Mathematical Development of Children, Tallahassee, FL.
(1976)
Quantitative comparison and class inclusion as readiness variables for learning first grade arithmetic content.
Technical Report No. 9. ERIC Document Reproduction Service No. ED144808. Project for Mathematical Development of Children, Tallahassee, FL.