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Language Development

Language & speech

Conversation happens through gestures, play and stories as well as words. Explore communication development in everyday family life, including homes where more than one language is spoken.

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Growth & Development

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Height, weight & growth · Motor skills · Language & speech · Thinking, learning & play · Social & emotional development · Milestones & developmental checks

Building blocks with simple shapes, a pair of small first-step shoes and a yellow pull-along duck on wheels
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Development from 1 to 3 Years

Learn what to expect as your child grows from 1 to 3 years, with everyday ways to support movement, communication, play, and emotional growth—without pressure or checklists.

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A colorful height chart, a baby scale, a yellow tape measure and a card showing a rising growth curve on a pastel background
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Baby and Toddler Growth 0–3: WHO Height and Weight by Month

Track your baby's and toddler's height and weight from birth to 3: WHO values by month for the first year, how to read the growth chart at 1–3, normal ups and downs, and when to seek help.

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