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Create algebraic expressions and evaluate them by substituting a given value for each variable(ACMNA176)

[/fusion_text][fusion_text]LO:To evaluate algebraic expressions
Know:

  • What an expression is
  • The four basic operations of numeracy

Understand:

  • That expressions can be created and solved using substituting methods.

Do:

  • I can evaluate algebraic expressions

Essential Questions:

  • What is an expression?
  • How can algebraic expressions be evaluated?

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Expressions and Equations

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An expression is one-half of a equation.

Remember:

x – 6 is an expression.

x – 6 = 10 is an equation.

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Evaluating an Expression

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To evaluate an expression, means to solve for the “missing piece”.

To evaluate an expression, we substitute (or replace) each pronumeral with a number and then work out the value.
Make sure you follow the correct order of operations when evaluating an expression (BODMAS)

X + 6, evaluate the value of the expression when we substitute (replace) x for 10.
10 + 6 = 16.

3k + 5, evaluate the value of the expression when we substitute k for 5.
3 x 5 + 5 = 20. (remember multiply before add)

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Real-life Example of Algebra

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Evaluating Expressions Videos

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Textbook Questions/Worksheets

[/fusion_text][button link=”http://www.alamandamaths.com/wp-content/uploads/2015/12/naplanWorded.pdf” color=”default” size=”” type=”” shape=”” target=”_self” title=”” gradient_colors=”|” gradient_hover_colors=”|” accent_color=”” accent_hover_color=”” bevel_color=”” border_width=”1px” icon=”” icon_position=”left” icon_divider=”no” modal=”” animation_type=”0″ animation_direction=”left” animation_speed=”1″ alignment=”” class=”” id=””]Worded Problems Worksheet[/button][button link=”http://www.alamandamaths.com/wp-content/uploads/2015/12/Algebra-Simple.pdf” color=”default” size=”” type=”” shape=”” target=”_self” title=”” gradient_colors=”|” gradient_hover_colors=”|” accent_color=”” accent_hover_color=”” bevel_color=”” border_width=”1px” icon=”” icon_position=”left” icon_divider=”no” modal=”” animation_type=”0″ animation_direction=”left” animation_speed=”1″ alignment=”” class=”” id=””]Worded Problems Simple Worksheet[/button][button link=”http://www.alamandamaths.com/wp-content/uploads/2015/12/Algebra-Simple-1.pdf” color=”default” size=”” type=”” shape=”” target=”_self” title=”” gradient_colors=”|” gradient_hover_colors=”|” accent_color=”” accent_hover_color=”” bevel_color=”” border_width=”1px” icon=”” icon_position=”left” icon_divider=”no” modal=”” animation_type=”0″ animation_direction=”left” animation_speed=”1″ alignment=”” class=”” id=””]Worded Problems Simple Worksheet 2[/button][button link=”http://www.alamandamaths.com/wp-content/uploads/2015/12/Algebra-Simple-3.pdf” color=”default” size=”” type=”” shape=”” target=”_self” title=”” gradient_colors=”|” gradient_hover_colors=”|” accent_color=”” accent_hover_color=”” bevel_color=”” border_width=”1px” icon=”” icon_position=”left” icon_divider=”no” modal=”” animation_type=”0″ animation_direction=”left” animation_speed=”1″ alignment=”” class=”” id=””]Worded Problems Simple Worksheet 3[/button][button link=”http://www.alamandamaths.com/wp-content/uploads/2015/12/Algebra-Simple-4.pdf” color=”default” size=”” type=”” shape=”” target=”_self” title=”” gradient_colors=”|” gradient_hover_colors=”|” accent_color=”” accent_hover_color=”” bevel_color=”” border_width=”1px” icon=”” icon_position=”left” icon_divider=”no” modal=”” animation_type=”0″ animation_direction=”left” animation_speed=”1″ alignment=”” class=”” id=””]Worded Problems Simple Worksheet 4[/button][button link=”http://www.alamandamaths.com/wp-content/uploads/2015/12/Algebra-Advanced.pdf” color=”default” size=”” type=”” shape=”” target=”_self” title=”” gradient_colors=”|” gradient_hover_colors=”|” accent_color=”” accent_hover_color=”” bevel_color=”” border_width=”1px” icon=”” icon_position=”left” icon_divider=”no” modal=”” animation_type=”0″ animation_direction=”left” animation_speed=”1″ alignment=”” class=”” id=””]Worded Problems Advanced Worksheet[/button][button link=”http://www.alamandamaths.com/wp-content/uploads/2015/12/Algebra-Advanced-2.pdf” color=”default” size=”” type=”” shape=”” target=”_self” title=”” gradient_colors=”|” gradient_hover_colors=”|” accent_color=”” accent_hover_color=”” bevel_color=”” border_width=”1px” icon=”” icon_position=”left” icon_divider=”no” modal=”” animation_type=”0″ animation_direction=”left” animation_speed=”1″ alignment=”” class=”” id=””]Worded Problems Advanced Worksheet 2[/button][fusion_text]

My Maths 7

Ex 5D pg. 253 Q. 1-5

My Maths 8

Ex 4B pg. 185 Q. 1-8

[/fusion_text][/fullwidth][fullwidth background_color=”” background_image=”” background_parallax=”none” enable_mobile=”no” parallax_speed=”0.3″ background_repeat=”no-repeat” background_position=”left top” video_url=”” video_aspect_ratio=”16:9″ video_webm=”” video_mp4=”” video_ogv=”” video_preview_image=”” overlay_color=”” overlay_opacity=”0.5″ video_mute=”yes” video_loop=”yes” fade=”no” border_size=”0px” border_color=”” border_style=”” padding_top=”20″ padding_bottom=”20″ padding_left=”0″ padding_right=”0″ hundred_percent=”no” equal_height_columns=”no” hide_on_mobile=”no” menu_anchor=”” class=”” id=””][imageframe lightbox=”no” lightbox_image=”” style_type=”none” hover_type=”none” bordercolor=”” bordersize=”0px” borderradius=”0″ stylecolor=”” align=”none” link=”http://www.alamandamaths.com/number-and-algebra/patterns-and-algebra/simplifying-algebraic-expressions/” linktarget=”_self” animation_type=”0″ animation_direction=”down” animation_speed=”0.1″ hide_on_mobile=”no” class=”” id=””] [/imageframe][/fullwidth]