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This paper describes the development and testing of a classroom and complementary home-based intervention to build preschoolers’ spatial orientation skills, focusing on exploring implementation feasibility and initial child learning outcomes. Spatial orientation, one type of spatial thinking, involves understanding the relationship between spatial positions, using maps and models to represent and navigate through space, and using spatial vocabulary. Evidence continues to accumulate that gaining spatial skills helps overall mathematics achievement and that learning resources are needed in this field. This mixed-methods study is the third in a series of investigations that leverage a design-based implementation research approach to develop preschool resources to support spatial orientation with both hands-on and technology-based experiences. Through a quasi-experimental comparison study, treatment teachers implemented eight weeks of hands-on activities, read-aloud stories, and digital activities (including an augmented reality app) and a sample of families also engaged in complementary home-based activities. The findings suggest that the resources help teachers feasibly implement spatial lessons, and preschoolers improve their learning of spatial concepts with the use of the classroom and home-based intervention. 

Recent evidence suggests that infants and toddlers may recognize counting as numerically relevant long before they are able to count or understand the cardinal meaning of number words. The Give-N task, which asks children to produce sets of objects in different quantities, is commonly used to test children’s cardinal number knowledge and understanding of exact number words but does not capture children’s preliminary understanding of number words and is difficult to administer remotely. Here, we asked whether toddlers correctly map number words to the referred quantities in a two-alternative forced choice Point-to-X task (e.g., “Which has three?”). Two- to three-year-old toddlers ( N = 100) completed a Give-N task and a Point-to-X task through in-person testing or online via videoconferencing software. Across number-word trials in Point-to-X, toddlers pointed to the correct image more often than predicted by chance, indicating that they had some understanding of the prompted number word that allowed them to rule out incorrect responses, despite limited understanding of exact cardinal values. No differences in Point-to-X performance were seen for children tested in-person versus remotely. Children with better understanding of exact number words as indicated on the Give-N task also answered more trials correctly in Point-to-X. Critically, in-depth analyses of Point-to-X performance for children who were identified as 1- or 2-knowers on Give-N showed that 1-knowers do not show a preliminary understanding of numbers above their knower-level, whereas 2-knowers do. As researchers move to administering assessments remotely, the Point-to-X task promises to be an easy-to-administer alternative to Give-N for measuring children’s emerging number knowledge and capturing nuances in children’s number-word knowledge that Give-N may miss.