This lesson is to teach the problem-solving strategy using the CUBES acronym. The students will use digital photos to create real-life story problems of their own and practice using the CUBES strategy to solve the problems they create as well as those of their peers.

This Nearpod activity takes 45-60 minutes. Students will learn how to draw pictures for addition story problems. They will learn about a plus and equal symbol. They will also be introduced to creating addition number sentences.

The author of this one-page article discusses early number sense and how it develops. She provides research background and suggests teaching strategies that promote early number sense, including instructions for simple games using dot cards. The article includes a list of references and a link to a follow-up article, "A Sense of 'ten' and Place Value" (cataloged separately).

This interactive Flash applet gives students the opportunity to copy, create and extend repeating patterns utilizing two different triangles. Many patterns are possible since the angles in both are multiples of 30 degrees and the shorter sides are equal in length. The Teachers' Notes page includes suggestions for implementation, ideas for extension and support, and printable sheets (pdf).

This problem encourages children to use logical reasoning and to work systematically. Students are presented with the faces of five children and are asked to work out which name goes with each face using the clues provided. The Teachers' Notes page offers rationale, suggestions for implementation, discussion questions, ideas for extension and support.