Math Is Fun
Math Is Fun: Pictographs
Explains, with examples, what pictographs are and their limitations. Includes ideas for making a pictograph and a set of practice questions.
Khan Academy
Khan Academy: Make Picture Graphs 1
Practice creating picture graphs (pictographs) from data sets. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
American Geosciences Institute
American Geosciences Institute: Earth Science Week: Rock Art in the National Parks
Students learn the importance of protecting pictographs as part of their geologic heritage by making their own paint using natural ingredients to create art.
Primary Resources
Primary Resources: Tally and Bar Charts
Lots of good materials for teaching about tally marks and bar graphs.
Other
Ohio Department of Education: Third Grade Achievement Test (Practice Test) [Pdf]
Half-length practice test for the third grade OAT (Ohio Achievement Test). The test includes 15 multiple-choice and 5 open-response question dealing with topics such as measurement (time, angles, ruler), data analysis (bar graphs,...