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John Laskarzewski's Page
CT,
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In a recent fourth grade class students were having a difficult time placing fractions on the number line. They also were not recognizing the value of the reference marks placed on the line. I used the number line tool to introduce the students to several strategies they could use to help them placing the fractions on the number line correctly. Five fractions were presented, ¼, 1/8, 3/8...
The classroom always presents the unexpected. I was working with a student in the lab who seemed to be discouraged by the unitizing grid. After a short interaction with the student, the teacher pulled me aside and informed me that this particular student is cognitively challenged and that to this student fractions and success are opposites. I went back and had the student open an activity that...
We used two activities in the computer lab yesterday and for eight lab sessions, estimating on the number line and unitizing on the gird, delivering them to the 160 excited fourth and fifth grade students without fail. Even during the dreaded (for the slowness of the network) lunch time class, students were presented with activity problems efficiently. Students launched the website from a link...
Posted this morning is a video that gives a general overview of the number line and its features. The overall teacher reaction to this tool has been positive. We'd be interested in hearing opinions and/or reactions to this tool and the included features.
The flexibility in presentation allows for a wide range of curricula and grade level applications, from fractions to decimals. A...
The video projectors that were used during the NCTM sessions are older models and do not display the Conceptua Math tools correctly due to the projector’s lower screen resolutions. Newer projector models will display the tools as they were designed.
