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Cognitive development: One-year-old.
American Academy of Pediatrics.https://www.healthychildren.org/English/ages-stages/toddler/Pages/Cognitive-Development-One-Year-Old.aspxOpens a new window[Accessed June 2020]
AAP.
Cognitive development: Two-year-old.
American Academy of Pediatrics.https://www.healthychildren.org/English/ages-stages/toddler/Pages/Cognitive-Development-Two-Year-Old.aspxOpens a new window[Accessed June 2020]
AAP.
Language development: 1 year olds.
American Academy of Pediatrics.https://www.healthychildren.org/English/ages-stages/toddler/Pages/Language-Development-1-Year-Olds.aspxOpens a new window[Accessed June 2020]
AAP.
Language development: 2 year olds.
American Academy of Pediatrics.https://www.healthychildren.org/English/ages-stages/toddler/Pages/Language-Development-2-Year-Olds.aspxOpens a new window[Accessed June 2020]
NIH.
Speech and language developmental milestones.
Play activities for 12 to 24 months.https://www.zerotothree.org/resources/167-play-activities-for-12-to-24-monthsOpens a new window[Accessed June 2020]
