The on-going professional development includes a variety of best teaching practices that embrace the key shifts in mathematics. These practices are researched based and focused on increasing student performance, productivity, and engagement.

Borko (2004) establishes that professional development including an explicit focus on subject matter can help teachers develop powerful understandings. To foster students’ conceptual understanding, teachers must have rich and flexible knowledge of the subjects they teach. In particular, they must understand the central facts and concepts of the discipline, how these ideas are connected, and the processes used to establish new knowledge and determine the validity of claims (Anderson, 1989; Ball, 1990; Borko & Puthnam, 1996) In addition teachers must have sustained professional development so they will be able to provide students with the critical foundations of middle school mathematics that will promote student confidence in their mathematics abilities and encourage positive self-beliefs, which can in turn help students to be more successful.

The instructional strategies promoted through NTN’s professional development builds mathematical concepts and connections through best practices utilizing the following seven proven methodologies at:

- By definition, problems involve obstacles and constraints. While engaged in solving problems, students must generate and test hypotheses related to the various solutions they predict might work…they must consider different approaches to a solution and then generate and test their hypotheses about those solutions.” (Marzano, 107)
- SOLVE is a step by step procedure to solve word problem. When students use a first-letter mnemonic strategy, it can increase their application of problem solving techniques (Mercer & Miller, 1992).
- Approaching mathematics through problem solving can create a context which simulates real life and therefore justifies the mathematics rather than treating it as an end in itself. The National Council of Teachers of Mathematics (NCTM, 1980) recommended that problem solving be the focus of mathematics teaching because, they say, it encompasses skills and functions which are an important part of everyday life.
- The National Council of Teachers of Mathematics has identified problem solving as one of the five fundamental mathematical process standards along with reasoning and proof, communication, connections, and representations (National Council of Teachers of Mathematics [NCTM], 2000).
- “Problem solving is the foundation of all mathematical activity” (Reys, Lindquist, Lambdin, Smith, &Suydam, 2001).
- Problem solving shouldn’t be a separate process, but rather the context within which students learn math skills and concepts (Zemelman, Daniels, & Hyde, 1998).

- “The very act of generating a concrete representation establishes “image” of the knowledge in students’ minds.” (Marzano, page 78)
- “Inductive instructional techniques require students to first discover the principles from which hypotheses are generated.” (Marzano, 105)
- Teaching students through the use of concrete manipulations, pictorial representations, then abstract numerals, is called the “concrete to representational to abstract sequence of instruction” (CRA). Teaching students through the three learning stages in CRA has shown to benefit secondary students in math acquisition (Witzel, 2005; Witzel, Mercer, and Miller, 2003).
- The development of math skills is positively impacted when students participate in concrete level activities leading to the discovery of grade-level mathematical concepts (Butler, et al. 2001). Through this process, they develop mathematical understanding while exploring ways of verbally expressing their discoveries. Student success with use of manipulatives is related to the teachers experience and expertise with the manipulatives.
- Using manipulatives helps students make the connection from the concrete to the abstract which makes information more accessible to all students (Devlin, 2000; Maccini & Gagnon, 2000)
- Research based studies show that students who use concrete materials develop more precise and more comprehensive mental representations, often show more motivation and on task behavior, understand mathematical ideas, and better apply these ideas to life situations (Harrison & Harrison, 1986).

- “Drawing pictures or pictographs (i.e. symbolic pictures) to represent knowledge is a powerful way to generate nonlinguistic representations in the mind. “ (Marzano, page 84)
- When teachers help students generate nonlinguistic representations, however, the effects on achievement are strong. It has even been shown that explicitly engaging students in the creation of nonlinguistic representations stimulates and increases activity in the brain (see Gerlic & Jausovec, 1999).” (Marzano, 73)
- The uses of multiple representations have been strongly connected with the complex process of learning in mathematics, and more particularly, with the seeking of the students’ better understanding of important mathematical concepts. Research done by Hiebert and Carpenter, (1992); Kaput, (1989a); and Skemp, (1987) illustrates that multiple representations of concepts can be utilized as a help for students in order to develop deeper, and more flexible understandings (Porzio, 1994).

- “Once students initially take notes, teacher’s should encourage them to continually add to the notes and revise them as their understanding of content deepens and sharpens” (Marzano,p.44)
- Graphic organizers are perhaps the most common way to help students generate nonlinguistic representations.” (Marzano, p. 75)
- A review of the research from 1980-1991 (Hudson, Lignugaris-Kraft, & Miller, 1993) concludes that visual displays can be successfully implemented at several phases of the instructional cycle.
- Graphic organizers can successfully improve learning when there is a substantive instructional context such as explicit instruction incorporating teacher modeling and independent practice with feedback (Boyle & Weishaar, 1997)

- The advantages of using games in a mathematical program have been summarized in an article by Davies (1995) who researched the literature available at the time. Increased learning - in comparison to more formal activities, greater learning can occur through games due to the increased interaction between children, opportunities to test intuitive ideas and problem solving strategies
- Games and activities often provide more practice than traditional worksheets. In addition these types of engaging activities can help student’s process ideas that may be difficult to develop in other ways. (Ex: sorting shapes, angles) (Hatch, 2005)
- Math activities and games providing students practice with skills; giving students ways to apply mathematical ideas to problem solving situations and develop strategic thinking. (Burns, 2003)

- Formative assessment can be highly effective in “raising the level of student attainment, increasing equity of student outcomes, and improving students’ ability to learn.” In effective formative assessment, teachers make frequent and interactive assessment in order to adjust teaching to meet student needs and to help students reach high standards. (OECD, 2005)
- Teachers can use formative assessment to produce feedback that is relevant and informative using good data about how students are progressing. This formative feedback helps teachers to review, reflect and take action to support student learning. Formative assessment supports understanding of where learners are in their learning, where they are going and what needs to be done to get them there (Nicol and Macfarlane-Dick, 2006)
- Teachers implement student progress monitor with four steps. The teacher determines the current performance level on skills, identifies year end achievement goals and establishes a rate of progress. The measure of meeting these goals are brief and easily administered measurements, which may be daily, weekly, biweekly or based on a unit. These measurements sample the range of year-long skills. (Safer and Fleischman, 2005)
- When teachers use systematic progress monitoring to track their students' progress, they are better able to identify students in need of additional or different forms of instruction, they design stronger instructional programs, and their students achieve better. (Fuchs and Fuchs, 2002)
- There is a wide range of research that supports the use of student progress monitoring. Studies show that students learn more, teacher decision making improves, and students become more conscious of their own academic performance. (Good & Jefferson, 1998).

- Mastery requires focused practice over days or weeks. After only four practice sessions students reach a halfway point to mastery. It takes more than 24 more practice sessions before students reach 80 percent mastery. And this practice must occur over a span of days or weeks, and cannot be rushed (Newell & Rosenbloom, 1981).
- Individualized assignments that tap into students' existing skills or interests can be motivating. At the elementary school level, homework can help students develop study skills and habits and can keep families informed about their child's learning. (Research Spotlight on Learning)
- Thus, creating learning conditions in class for successful formative and guided practice, and checking student readiness for successful independent practice (homework) on the complex tasks within the assignment is crucial. If the assignment is not doable for them, they will get discouraged and shut down. They just won't run to practice an area of 'no talent'. (Kannold, 2011)

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