--- title: Math Shelf Articles | John Schacter, Ph.D. description: View our latest posts for information on early math learning, research, tips, tricks, and math activities for PK and K students. image: https://www.mathshelflearning.com/hubfs/Math%20Class%20Google%20Classroom%20Header%20%28300%20%C3%97%20175%20px%29.png --- ![John Schacter, Ph.D.](https://www.mathshelflearning.com/hubfs/Untitled%20design-84.png) # John Schacter, Ph.D. All Post - [All Post](https://www.mathshelflearning.com/articles) Search ###### [Updated Math Shelf Data Reports](https://www.mathshelflearning.com/articles/ur) [ John Schacter, Ph.D. ](https://www.mathshelflearning.com/articles/author/john-schacter-ph-d) 08 April, 2026 [ Read More ](https://www.mathshelflearning.com/articles/ur) ###### [Math Shelf 2026 Play Contest Winners](https://www.mathshelflearning.com/articles/math-shelf-2026-play-contest-winners) [ John Schacter, Ph.D. ](https://www.mathshelflearning.com/articles/author/john-schacter-ph-d) 01 April, 2026 [ Read More ](https://www.mathshelflearning.com/articles/math-shelf-2026-play-contest-winners) ###### [Math Shelf 2025 Play Contest Winners](https://www.mathshelflearning.com/articles/math-shelf-2025-play-contest-winners) [ John Schacter, Ph.D. ](https://www.mathshelflearning.com/articles/author/john-schacter-ph-d) 02 April, 2025 [ Read More ](https://www.mathshelflearning.com/articles/math-shelf-2025-play-contest-winners) ###### [Introducing Math Shelf's Fish Tank](https://www.mathshelflearning.com/articles/fishtank) [ John Schacter, Ph.D. ](https://www.mathshelflearning.com/articles/author/john-schacter-ph-d) 21 February, 2024 [ Read More ](https://www.mathshelflearning.com/articles/fishtank) ###### [Create Your Math Shelf Bulletin Board](https://www.mathshelflearning.com/articles/bb) [ John Schacter, Ph.D. ](https://www.mathshelflearning.com/articles/author/john-schacter-ph-d) 11 October, 2023 [ Read More ](https://www.mathshelflearning.com/articles/bb) ###### [Introducing Math Shelf Assessment](https://www.mathshelflearning.com/articles/math-shelf-winter-assessment) [ John Schacter, Ph.D. ](https://www.mathshelflearning.com/articles/author/john-schacter-ph-d) 20 January, 2023 [ Read More ](https://www.mathshelflearning.com/articles/math-shelf-winter-assessment) ###### [Historic Math Losses on 2022 Nation's Report Card](https://www.mathshelflearning.com/articles/mathlosses) [ John Schacter, Ph.D. ](https://www.mathshelflearning.com/articles/author/john-schacter-ph-d) 25 October, 2022 [ Read More ](https://www.mathshelflearning.com/articles/mathlosses) ###### [Math Shelf Hands-on Lessons](https://www.mathshelflearning.com/articles/handson) [ John Schacter, Ph.D. ](https://www.mathshelflearning.com/articles/author/john-schacter-ph-d) 25 October, 2022 [ Read More ](https://www.mathshelflearning.com/articles/handson) ###### [Math Shelf Reviews](https://www.mathshelflearning.com/articles/reviews) [ John Schacter, Ph.D. ](https://www.mathshelflearning.com/articles/author/john-schacter-ph-d) 10 October, 2022 [ Read More ](https://www.mathshelflearning.com/articles/reviews) ###### [Report Cards That Encourage Family Engagement](https://www.mathshelflearning.com/articles/reportcard) [ John Schacter, Ph.D. ](https://www.mathshelflearning.com/articles/author/john-schacter-ph-d) 04 October, 2022 [ Read More ](https://www.mathshelflearning.com/articles/reportcard)