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Lessons learned from the 2025 Algebra I STAAR EOC
Using a modified version of the statewide item analysis report, I examined the readiness standards that had less than 60% mastery. Each standard has both an analysis of the items themselves to infer what made them so difficult and instructional implications for educators to ensure a more successful 2026 STAAR test. Standard # of items % mastery A.11B 2 35.5 A.3D 2 38.5 A.5C 2 42 A.7C 2 45.5 A.2I 2 50 A.5A 2 50 A.6A 2 51 A.2A 2 53 A.9C 2 53 A.8A 2 55.5 A.3B 2 56 A.9D 2 56.5 A
Aaron Daffern
Jan 156 min read
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![Number Line: Fractions [TEKS Tools Grade 4]](https://static.wixstatic.com/media/7cf6a4_36ee54b8562a48558c703a4f8cf1d980~mv2.png/v1/fill/w_333,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/7cf6a4_36ee54b8562a48558c703a4f8cf1d980~mv2.webp)
![Number Line: Fractions [TEKS Tools Grade 4]](https://static.wixstatic.com/media/7cf6a4_36ee54b8562a48558c703a4f8cf1d980~mv2.png/v1/fill/w_514,h_386,fp_0.50_0.50,q_95,enc_avif,quality_auto/7cf6a4_36ee54b8562a48558c703a4f8cf1d980~mv2.webp)
Number Line: Fractions [TEKS Tools Grade 4]
This post specifically looks at how number lines can be used to compare, represent, and show equivalent fractions. Read more about TEKS Tools and their rationale here. Number Lines Number lines, the second TEKS Tool, account for around 20% of each 4th grade STAAR test. Within this tool are many uses: representing and comparing fractions, interpreting number pair relationships, and solving problems involving rounding and the operations. The main function of a number line is to
Aaron Daffern
Jan 112 min read
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![Strip Diagram: Comparison [TEKS Tools Grade 4]](https://static.wixstatic.com/media/7cf6a4_ba837f9b9be14bef9206a4271f5af48b~mv2.png/v1/fill/w_333,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/7cf6a4_ba837f9b9be14bef9206a4271f5af48b~mv2.webp)
![Strip Diagram: Comparison [TEKS Tools Grade 4]](https://static.wixstatic.com/media/7cf6a4_ba837f9b9be14bef9206a4271f5af48b~mv2.png/v1/fill/w_514,h_386,fp_0.50_0.50,q_95,enc_avif,quality_auto/7cf6a4_ba837f9b9be14bef9206a4271f5af48b~mv2.webp)
Strip Diagram: Comparison [TEKS Tools Grade 4]
This post specifically looks at how comparison strip diagrams can be used to solve a variety of problems. Read more about TEKS Tools and their rationale here . Strip Diagram Strip diagrams, the first TEKS Tool , account for around 25% of each 4th grade STAAR test. Within this tool are many variations: part-whole, equal groups, and comparison (the first two being the primary types of strip diagram used). The main function of a strip diagram is to show the relationship betwee
Aaron Daffern
Jan 102 min read
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![Strip Diagram: Equal Groups [TEKS Tools Grade 4]](https://static.wixstatic.com/media/7cf6a4_29492132912042a29b07a49c8545b4dd~mv2.png/v1/fill/w_333,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/7cf6a4_29492132912042a29b07a49c8545b4dd~mv2.webp)
![Strip Diagram: Equal Groups [TEKS Tools Grade 4]](https://static.wixstatic.com/media/7cf6a4_29492132912042a29b07a49c8545b4dd~mv2.png/v1/fill/w_514,h_386,fp_0.50_0.50,q_95,enc_avif,quality_auto/7cf6a4_29492132912042a29b07a49c8545b4dd~mv2.webp)
Strip Diagram: Equal Groups [TEKS Tools Grade 4]
This post specifically looks at how equal groups strip diagrams can be used to solve a variety of problems. Read more about TEKS Tools and their rationale here . Strip Diagram Strip diagrams, the first TEKS Tool , account for around 25% of each 4th grade STAAR test. Within this tool are many variations: part-whole, equal groups, and comparison (the first two being the primary types of strip diagram used). The main function of a strip diagram is to show the relationship betw
Aaron Daffern
Jan 103 min read
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![Strip Diagram: Part-Whole [TEKS Tools Grade 4]](https://static.wixstatic.com/media/7cf6a4_6972a9de6b4140cc8b96ceb51cea6956~mv2.png/v1/fill/w_333,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/7cf6a4_6972a9de6b4140cc8b96ceb51cea6956~mv2.webp)
![Strip Diagram: Part-Whole [TEKS Tools Grade 4]](https://static.wixstatic.com/media/7cf6a4_6972a9de6b4140cc8b96ceb51cea6956~mv2.png/v1/fill/w_514,h_386,fp_0.50_0.50,q_95,enc_avif,quality_auto/7cf6a4_6972a9de6b4140cc8b96ceb51cea6956~mv2.webp)
Strip Diagram: Part-Whole [TEKS Tools Grade 4]
This post specifically looks at how part-whole strip diagrams can be used to solve a variety of problems. Read more about TEKS Tools and their rationale here . Strip Diagram Strip diagrams, the first TEKS Tool , account for around 25% of each 4th grade STAAR test. Within this tool are many variations: part-whole, equal groups, and comparison (the first two being the primary types of strip diagram used). The main function of a strip diagram is to show the relationship betwee
Aaron Daffern
Jan 103 min read
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![Place Value Chart: Comparing/Ordering [TEKS Tools Grade 3]](https://static.wixstatic.com/media/7cf6a4_f107302cfc2140a082c5979fa16786b5~mv2.png/v1/fill/w_333,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/7cf6a4_f107302cfc2140a082c5979fa16786b5~mv2.webp)
![Place Value Chart: Comparing/Ordering [TEKS Tools Grade 3]](https://static.wixstatic.com/media/7cf6a4_f107302cfc2140a082c5979fa16786b5~mv2.png/v1/fill/w_514,h_386,fp_0.50_0.50,q_95,enc_avif,quality_auto/7cf6a4_f107302cfc2140a082c5979fa16786b5~mv2.webp)
Place Value Chart: Comparing/Ordering [TEKS Tools Grade 3]
This post specifically looks at how place value charts can be used to compare/order numbers. Read more about TEKS Tools and their rationale here . PlAce Value Charts Place value charts, the third TEKS Tool , account for around 13% of each 3rd grade STAAR test. These charts help students understand our base-10 number system. The main function of a place value chart is to show the relationship between place value locations in our number system. By visualizing numbers on a pla
Aaron Daffern
Jan 32 min read
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![Place Value Chart: Place Value Relationships [TEKS Tools Grade 3]](https://static.wixstatic.com/media/7cf6a4_6eee3e9b64804cb28e13e1b15544ac8d~mv2.png/v1/fill/w_333,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/7cf6a4_6eee3e9b64804cb28e13e1b15544ac8d~mv2.webp)
![Place Value Chart: Place Value Relationships [TEKS Tools Grade 3]](https://static.wixstatic.com/media/7cf6a4_6eee3e9b64804cb28e13e1b15544ac8d~mv2.png/v1/fill/w_514,h_386,fp_0.50_0.50,q_95,enc_avif,quality_auto/7cf6a4_6eee3e9b64804cb28e13e1b15544ac8d~mv2.webp)
Place Value Chart: Place Value Relationships [TEKS Tools Grade 3]
This post specifically looks at how place value charts can be used to understand place value and compose/decompose numbers. Read more about TEKS Tools and their rationale here . PlAce Value Charts Place value charts, the third TEKS Tool , account for around 13% of each 3rd grade STAAR test. These charts help students understand our base-10 number system. The main function of a place value chart is to show the relationship between place value locations in our number system.
Aaron Daffern
Jan 32 min read
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![Number Line: Solving Problems [TEKS Tools Grade 3]](https://static.wixstatic.com/media/7cf6a4_c04c169fd8a44ae5a06e1b8113700730~mv2.png/v1/fill/w_333,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/7cf6a4_c04c169fd8a44ae5a06e1b8113700730~mv2.webp)
![Number Line: Solving Problems [TEKS Tools Grade 3]](https://static.wixstatic.com/media/7cf6a4_c04c169fd8a44ae5a06e1b8113700730~mv2.png/v1/fill/w_514,h_386,fp_0.50_0.50,q_95,enc_avif,quality_auto/7cf6a4_c04c169fd8a44ae5a06e1b8113700730~mv2.webp)
Number Line: Solving Problems [TEKS Tools Grade 3]
This post specifically looks at how number lines can be used to solve a variety of problems involving rounding, estimation, and the four operations. Read more about TEKS Tools and their rationale here . Solving Problems Number lines, the second TEKS Tool , account for around 22% of each 3rd grade STAAR test. Within this tool are many uses: representing and comparing fractions, interpreting number pair relationships, and solving problems involving rounding and the operations.
Aaron Daffern
Jan 32 min read
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![Number Line: Number Pairs [TEKS Tools Grade 3]](https://static.wixstatic.com/media/7cf6a4_02f6aec197c343c9931b3fc4e94a25f6~mv2.png/v1/fill/w_333,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/7cf6a4_02f6aec197c343c9931b3fc4e94a25f6~mv2.webp)
![Number Line: Number Pairs [TEKS Tools Grade 3]](https://static.wixstatic.com/media/7cf6a4_02f6aec197c343c9931b3fc4e94a25f6~mv2.png/v1/fill/w_514,h_386,fp_0.50_0.50,q_95,enc_avif,quality_auto/7cf6a4_02f6aec197c343c9931b3fc4e94a25f6~mv2.webp)
Number Line: Number Pairs [TEKS Tools Grade 3]
This post specifically looks at how number lines can be used to explore number pair relationships in real-world scenarios. Read more about TEKS Tools and their rationale here . Number Pairs Number lines, the second TEKS Tool , account for around 22% of each 3rd grade STAAR test. Within this tool are many uses: representing and comparing fractions, interpreting number pair relationships, and solving problems involving rounding and the operations. The main function of a numbe
Aaron Daffern
Jan 32 min read
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![Number Line: Fractions [TEKS Tools Grade 3]](https://static.wixstatic.com/media/7cf6a4_82b47fd08b4a4955a6dd7232a1469134~mv2.png/v1/fill/w_333,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/7cf6a4_82b47fd08b4a4955a6dd7232a1469134~mv2.webp)
![Number Line: Fractions [TEKS Tools Grade 3]](https://static.wixstatic.com/media/7cf6a4_82b47fd08b4a4955a6dd7232a1469134~mv2.png/v1/fill/w_514,h_386,fp_0.50_0.50,q_95,enc_avif,quality_auto/7cf6a4_82b47fd08b4a4955a6dd7232a1469134~mv2.webp)
Number Line: Fractions [TEKS Tools Grade 3]
This post specifically looks at how number lines can be used to compare, represent, and show equivalent fractions. Read more about TEKS Tools and their rationale here . Number Lines Number lines, the second TEKS Tool , account for around 22% of each 3rd grade STAAR test. Within this tool are many uses: representing and comparing fractions, interpreting number pair relationships, and solving problems involving rounding and the operations. The main function of a number line i
Aaron Daffern
Jan 32 min read
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![Strip Diagram: Comparison [TEKS Tools Grade 3]](https://static.wixstatic.com/media/7cf6a4_bc7782822e9846d78e004dcf7d7d9335~mv2.png/v1/fill/w_333,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/7cf6a4_bc7782822e9846d78e004dcf7d7d9335~mv2.webp)
![Strip Diagram: Comparison [TEKS Tools Grade 3]](https://static.wixstatic.com/media/7cf6a4_bc7782822e9846d78e004dcf7d7d9335~mv2.png/v1/fill/w_514,h_386,fp_0.50_0.50,q_95,enc_avif,quality_auto/7cf6a4_bc7782822e9846d78e004dcf7d7d9335~mv2.webp)
Strip Diagram: Comparison [TEKS Tools Grade 3]
This post specifically looks at how comparison strip diagrams can be used to solve a variety of problems. Read more about TEKS Tools and their rationale here . Strip Diagram Strip diagrams, the first TEKS Tool , account for around 40% of each 3rd grade STAAR test. Within this tool are many variations: part-whole, equal groups, and comparison (the first two being the primary types of strip diagram used). The main function of a strip diagram is to show the relationship betwee
Aaron Daffern
Jan 32 min read
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![Strip Diagram: Equal Groups [TEKS Tools Grade 3]](https://i.ytimg.com/vi/sofh73hjXn0/maxresdefault.jpg)
![Strip Diagram: Equal Groups [TEKS Tools Grade 3]](https://i.ytimg.com/vi/sofh73hjXn0/maxresdefault.jpg)
Strip Diagram: Equal Groups [TEKS Tools Grade 3]
This post specifically looks at how equal groups strip diagrams can be used to solve a variety of problems. Read more about TEKS Tools and their rationale here . Strip Diagram Strip diagrams, the first TEKS Tool , account for around 40% of each 3rd grade STAAR test. Within this tool are many variations: part-whole, equal groups, and comparison (the first two being the primary types of strip diagram used). The main function of a strip diagram is to show the relationship betw
Aaron Daffern
Jan 34 min read
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![Strip Diagram: Part-Whole [TEKS Tools Grade 3]](https://static.wixstatic.com/media/7cf6a4_dcf725b853fb4110ab857f37907e85a0~mv2.png/v1/fill/w_333,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/7cf6a4_dcf725b853fb4110ab857f37907e85a0~mv2.webp)
![Strip Diagram: Part-Whole [TEKS Tools Grade 3]](https://static.wixstatic.com/media/7cf6a4_dcf725b853fb4110ab857f37907e85a0~mv2.png/v1/fill/w_514,h_386,fp_0.50_0.50,q_95,enc_avif,quality_auto/7cf6a4_dcf725b853fb4110ab857f37907e85a0~mv2.webp)
Strip Diagram: Part-Whole [TEKS Tools Grade 3]
This post specifically looks at how part-whole strip diagrams can be used to solve a variety of problems. Read more about TEKS Tools and their rationale here . Strip Diagram Strip diagrams, the first TEKS Tool , account for around 40% of each 3rd grade STAAR test. Within this tool are many variations: part-whole, equal groups, and comparison (the first two being the primary types of strip diagram used). The main function of a strip diagram is to show the relationship betwee
Aaron Daffern
Jan 33 min read
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