Addition and Subtraction to 100
Online addition games: http://www.math-play.com/addition-games.html
Two digit addition with regrouping: http://www.softschools.com/math/addition/2_digit_addition/2_digit_addition_with_regrouping/
Fruit splat Subtraction!: http://www.sheppardsoftware.com/mathgames/fruitshoot/fruitshoot_subtraction.htm
Challenge! 3 digit addition (regrouping): http://www.softschools.com/math/addition/3_digit_addition/3_digit_addition_with_regrouping/
Challenge! Subtraction (with regrouping): http://www.softschools.com/math/subtraction/2_digit_subtraction/2_digit_subtraction_with_regrouping/
Interactive 100's chart: http://www.abcya.com/interactive_100_number_chart.htm
Tens and Ones Adding: http://www.youtube.com/watch?v=Nm6OzQKQ3wg
Skip counting by tens: http://www.youtube.com/watch?v=uYRTtwZGwj8
Adding and Subtracting to 18
Students will be using strategies that they learned during
the number exploration unit (Number relationships to 100) to identify methods
of adding and subtracting numbers to 18. They will be working with objects
around the classroom, pictures and diagrams, partners and groups to solve
number problems. Grade 2J students have already begun to come up with clever
number stories that can be solved using number sentences and by creating fact
families! Numbers have never been so much fun!
Mental Maths Strategies: http://olc.spsd.sk.ca/de/math1-3/p-mentalmath.html
Addition and subtraction on-line games: http://worksheets.mathsbuilder.com.au/games/selector/Addition_and_Subtraction/1/
Numbers to 100:
Our 2nd maths unit is Numbers to 100. We have begun to look at numbers and their relationships to
one another by studying number lines and 100 charts. We are looking at numbers
that come before and after any given number between 0 and 100 and are using
language like "more than" or "less than" to describe their
position. Students learn to show their understanding of number patterns through skip counting. They should be able to skip count by 2's (starting from
0 or from 1), 5's and 10's. We will also learn the difference between odd and even numbers. Students will be looking at equal and unequal sets, comparing and ordering numbers, estimating and counting to 100, and using patterns in counting
sequences to describe the world and solve problems.
Measurement
Students will understand the concepts of time and
organizing important dates as we better understand the way a
calendar works and how we can use adding and subtracting to find dates on a
calendar. We will be using logical thinking to judge which non-standard units
of measure will work best as we measure large and small objects around the
classroom and use these measurements to compare and order things based on their
overall size, length, width and height. Understanding and defining weight and
mass will give students a better understanding of size and ties into our unit
on Buoyancy and Boats!
Patterns and Relations:Our first maths unit is Patterns and Relations. This unit builds on the knowledge children have gained in previous years. Pattern recognition is very important in child development as patterns are found in
ideas, words, symbols, behaviours, routines, nature, numbers, and images.
The ability to recognize, identify, and create patterns not only
supports mathematical learning, but also contributes to general social
development. By understanding patterns, children are able to make
predictions about what should come next. In Grade 2 we will use manipulatives, diagrams, sounds and actions to develop an understanding of repeating patterns (of three to five elements) through describing, extending, comparing and creating. We will also develop a deeper understanding of patterns by learning about increasing patterns. We will be able to describe, reproduce, extend and create both numerical (numbers to 100) and non-numerical patterns.
Click here for the Study Guide for this unit.
Click here for some 'Balloon Popping Number Pattern' fun!
Click here for some 'Fill in the Blanks Number Sequencing' challenges.
Click here for some 'Code Cracking' coolness!
Data Analysis:
What is data analysis? It is when we collect information, display it in different ways and learn from it.
What
are some of the ways we can display information? Bar graphs, circle
graphs, tally marks, weather charts, calendars, pictographs, votes, line
graphs, tables, Venn diagrams, mind maps.
Look at a graph. What is it telling you? What information can you learn from looking at this graph?
We
will work on Data Analysis throughout the year. By the end of Grade 2,
your child will understand what Data Analysis is and what it is for.
Your child will be able to prepare tallies and graphs based on given
information. Your child will learn to ask questions about graphs (e.g.
With a graph about "Favourite Sports", your child will know to ask “How
many people like soccer? How many more people like football than
hockey? How many people were surveyed all together? Is there a sport
that no one likes? etc.). Your child will also need to accurately
answer such questions.
Here are some internet links to assist your child develop an understanding of Data Analysis:
http://www.eduplace.com/math/mw/background/2/03/te_2_03_overview.html
http://www.beaconlearningcenter.com/WebLessons/KindsOfGraphs/default.htm
http://www.internet4classrooms.com/grade_level_help/skills_second_2nd_math_data_analysis_and_probability.htm
http://www.mathsisfun.com/geometry/vertices-faces-edges.html
http://www.mathsisfun.com/data/index.html 
