Apps for Children:

• ABC Mouse

• ABCya! • Learning Games and Apps for Kids

• Starfall 

Math:

• 20 Preschool Math Games and Activities To Start Kids Off Right 

• 15 Hands-On Math Activities for Preschoolers 

• 42 Beneficial Math Activities For Preschool Learners - Teaching Expertise 

• 25+ Math Activities for Preschoolers - Busy Toddler 

Science:

• 30 Simple and Fun Preschool Science Experiments and Activities 

• 50 Easy Preschool Science Experiments 

• 100 Easy Science Activities for Preschoolers 

• 20 Science Projects for Preschoolers 

• Easy Preschool Science Activities - You Don't Need to Be Scared!