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Empty Layer.Empty Layer.Empty Layer.Empty Layer.Empty Layer.Empty Layer.Empty Layer.Empty Layer.Empty Layer.Empty Layer.5 teachers like this lessonPrint LessonStudents will be able to add and subtract mixed numbers by converting into improper fractions.Changing Mixed Numbers into improper fractions makes it easy to add and subtract fractions.Language Objective: Students will be able to change mixed numbers into improper fractions and explain their work using academic languagePrior Knowledge: improper fractions, adding and subtracting fractionsMath Blast Number of the Day 30Math Blast is a quick, fun, fast-paced math game! It doesnt require a lot of materials - just the PowerPoint, music, white boards, and dry erase markers. I begin every day with a Number of the Day.Math Blast is also a great place to work on Common Core skills, especially critical thinking skills, discourse and collaboration!I usually play music while students are working (it is the Blast in Math Blast). They have to the end of the song to fill in their board.In the beginning this is more time than most need, but they will use all of the time when the numbers get bigger. Math Blast is a great way to pre-teach a concept and is really good scaffolding, especially for those struggling learners. I like to add new concepts that will be learning in the near future into Math Blast. This way students are familiar with new concepts when I go to teach them. If they havent figured out the work through Math Blast they will have at least seen the concept. I allow table mates to support each other, this is also a good way to support struggling learners.The basic content my Math Blast covers is:Begin with prior knowledge tasks, factoring GCF, LCM. In 5th grade this is really good to have understanding for going into fractions.I always add some rounding and estimation, good tools to know and it is pre-teaching our next lesson.I always like to end with a word problem to challenge and support students skills in answering a problem with what the question is requesting them to do. The closing piece of Math Blast is See, Think, and Wondering.I end Math Blast and lead into my lesson with a See, Think, Wondering. The art is choose always relates to the unit I am teaching.See, Think, Wonder is a dynamic way to get your students to think deeper about a subject without them knowing that they are doing it.The SEE part is pretty basic thinking. I see….The THINK part is intended to get students to think about things in ways they havent before. This is a fun way for students to make connection to the things were learning in math. In my class, well be thinking about math and art. I use art because I am passionate about art. Use examples of things that ignite your passion! This art makes me think about….And the WONDER requires enough engagement with the topic (the art) to be able to come up with a question. This art makes me wonder if….See, Think, Wonder is my way to getting their brains ready to think about math and I find that the transition is great. It is also a quick chance to expose my students to different types of art.Note: Ive added a See, Think, Wondering separate from the Math Blast in case you want to do it by itself. It is also attached at the end of the Math Blast PowerPoint.Note: You dont have to use art; I use art because I am passionate about art. Use examples of things that ignite your passion!Concept: Fractions are fun but it always amazing how students forget over the summer. This lesson specifically addresses Common Core Standard 5.NF.A.1: Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators.Concept: Start by discussing changing mixed numbers into improper fractions. Check to see if you need to go back and remind students what an improper fraction is. A good way to do this would be to ask students to give you examples of improper fractions. When students share their examples, make sure they explain their thinking. For example, 32 is an improper fraction. I know this because the fraction is top heavy, its numerator is greater than its denominator. There is a simple algorithm to change mixed numbers into improper fractions: multiply the denominator by the whole number, and then add the numerator. This becomes the NEW numerator. Your denominator stays the same. Example: 3 ½ becomes 2 x 3 + 1 = 72BUT before you show the algorithm you must make sure students understand what they are doing. Show the attached model and ask the students what fraction is represented. Do not show them the answer. Wait to see what responses you get. I hope they see 3 12 but you are trying to get them to see that it is also seven 12s or 72. They are going to need this skill to be able to add Mixed Numbers.Have students create a Four Square Poster as follows:Create mixed number with a denominator of 2 and convert it into an improper numberCreate mixed number with a denominator of 4 and convert it into an improper numberWrite an addition expression using both of the mixed number you use in the two upper boxes and then solve the expression using the improper numbers you created Draw a model to represent your mathematical expressionIf students finish early: have them work in teams and test each other. A gallery walk about be a great idea here, give students a chance to show off their thinking and be able to explain it to classmates Note: I keep the math simple on purpose. I want to make sure that students have a solid understanding of the concept. I think sometimes we forget the immediate purpose, and make things too hard for students when we are trying to teach a concept (see reflection). I use the Four Square so that students can organize their thinking. if you have students pushing through too quickly, give them harder problems and challenge them!To close, we talk about the similarities between Mixed Number Addition and simple fraction addition. I get the discussion going by giving students 4 13, and ask how many thirds we have. Are there different ways of finding the answer? This might be where the algorithm comes up! If so, make sure there is understanding, not just procedural skill.The Closing It section of the lesson is very important. This opportunity allows you to bring the class back together and have them make the connection to the learning objective of the day. You should also make sure that you make a connection to the word of the day. This closing gives students the opportunity to make the connection to the launch and they work that they did. It is also another chance to give a quick formative assessment to check for understanding.Post-It Poster: 1 ½ + 1 ¼ = (Require an answer with a model!)Look-Fors: You might see the denominators being added, which tells you that they still do not have basic adding fraction skills down yet. You might also see an answer without a model which could mean they know the algorithm, but without the deeper learning.The Quick Assessment is supposed to be quick and on the easy to medium difficulty level. You are checking to see if students understand the basic concept of the lesson. If you make the problem difficult you are adding a different level of assessment. If you are teaching a higher level class adding a difficult layer might be appropriate but please note that I do not find it necessary to add this level.
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