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# Oregon Early Childhood Foundation: Ages Three to Five - Mathematics (page 2)

State: Oregon Department of Education
Updated on Nov 12, 2009

### Early Childhood Foundations: Numbers and Operations

Children develop an awareness of numerals by:

• Counting, grouping and matching
• Number recognition
• Using language to describe a sequence of events in time

### Indicators:Observable Behaviors

#### The Child

• Counts up to ten.
• Uses number concepts and vocabulary such as: first, last, next to, before, after, etc.
• Combines, separates and names “how many” concrete objects.
• Uses words such as more than and less than to express some number concepts.
• Recognizes numerals 1 – 20.
• Uses words such as yesterday, today and tomorrow in conversation.

• Provides opportunities, materials and activities for counting (number puzzles, finger plays, books, songs, grouping objects) that allow children to play with and develop the language and concepts of mathematics.
• Uses descriptive words throughout the day such as yesterday and today in conversation.

### Supportive Learning Environments Include

• Mathematics materials for sorting and counting, available and easily accessible to the children throughout the day.
• Numbers posted throughout the home or educational environment.
• Pictures, posters and signage that include numbers and number words (clocks, timers, measuring cups, scales, number lines, calendars, etc.).

### Early Childhood Foundation: Geometry and Spatial Sense

Children develop knowledge of geometric principles and spatial sense by:

• Correctly using comparison words and words that describe the relative position of things
• Classifying shapes
• Using shapes to make representative patterns
• Grouping objects (all large, all yellow, some big and others small, etc.)
• Providing reasoning for groupings

### Indicators: Observable Behaviors

#### The Child

• Recognizes simple shapes.
• Compares various sizes of items (longer, shorter, same).
• Describes, compares and names common shapes, their parts and attributes (circle, square, triangle, round, three sides, etc.).
• Uses descriptive words such as: up, down, over, under, top, bottom, inside, outside, in front of and behind.