smithba.wbms Profile Topics Started Replies Created Engagements Favorites Search topics: Forum Topics Started Viewing 2 topics - 1 through 2 (of 2 total) Topic Voices Posts Last Post Zimba's comment: "The number line is not an appropriate model for place value"? Started by: smithba.wbms in: K–5 Number and Operations in Base Ten 2 2 10 years, 5 months ago Bill McCallum The Continuous/Discrete Distinction Started by: smithba.wbms in: 6–8 The Number System 2 3 11 years, 3 months ago Bill McCallum Viewing 2 topics - 1 through 2 (of 2 total)