She currently has 106 resources in her Teachers Pay Teachers store. Although she creates products for many subject areas, her emphasis is on math, most of which are suitable for grades 1-4.
Presently, Nancy has ten free products in her store. One of my favorites is entitled: Back to School: Stack and Solve Addition and Subtraction with Ballpark Estimates. It is a nine page resource booklet appropriate for grades 3-4. Students can practice adding and subtracting with regrouping while using ballpark estimates to check their work. Included are 24 cards, a recording sheet and an answer key.
Nancy's products are reasonably priced, but she also offers several bundles so that teachers can save even more money. One of those bundles is 64 pages and includes Line Plots: Build Them, and Line Plot Scavenger Hunt. Even though both items are sold separately, you save 20% by purchasing them in a bundle!
The second portion of this bundle is called Line Plot Scavenger Hunt. Students move around the room solving 30 line plot cards. Students may work independently or with partners. Students should be familiar with finding the range and mode, and a calculator may be useful for some cards depending on the level of your students.
Additionally, Nancy has her own blog that is titled the same as her TPT store, Create, Learn, Explore. Her articles are well thought out as well as practical which means you can learn a great deal from her.