I would like to add Cameron's Milestones and Progress during infancy, toddler hood and elementary. Every child is unique and will meet milestones at different times. Or might even take a step back at any age.
Sitting up Alone: 10 months
Crawling: Army Crawl 11 months Traditional Crawl: 15 months
Cruising Around Tables: 18 months
Walking: 20 months
Climbing Stairs: 3 years old Bike Riding with training wheels: 6 almost 7
Princer Grasp: 5 years old, still work on it at 6.5
Speech Patterns: Some babbling, a lot of drooling past infant stage: 3.5 years began some 2 word sentences. Age 5 talking more, articulation issues/apraxia.
Education: Counting, ABC's, Shapes: 4 years class, more work in 5's. Now, in 1st trying to understand CVC words (CAT,HAT), Math, Counting is hard for him. Math is getting better in 1st grade. He loves Math and adding. Reading is harder and he has signs of dyslexia.