Reading A to Z Correlation Chart

In Reading A-Z, there is a level correlation chart where it illustrates how Learning A-Z levels approximately correlate to other leveling systems which are commonly found in leveled reading materials. As explained on the Reading A-Z site, objective (quantitative) and subjective (qualitative) leveling criteria are used by the Learning A-Z Text Leveling System in English and Spanish to measure the complexity of text.

Teachers are required to use their professional judgement of additional qualitative criteria along with reader and task considerations to determine whether an individual book at a given level is suitable for a student or not.

According to the Reading A-Z site, here is the level correlation chart.

Learning A-Z Text Leveling System Grade Ages Lexile Accelerated Reader (ATOS) DRA Fountas & Pinnell Reading Recovery PM Readers
aa K 4 – 6 BR70L – 10L 0 – .9 A-1 A 1 Starters 1
A K 4 – 6 BR70L – 10L 0 – .9 A-1 A 1 Starters 1
B K 4 – 6 BR40L – 160L 0 – .9 2 B 2 Starters 2
C K 4 – 6 BR40L – 160L 0 – .9 3-4 C 3-4 3-4 red
D 1 4 – 7 160L – 310L 1 – 2.4 6 D 5-6 5-6 red/ yellow
E 1 6 – 7 160L – 310 L 1 – 2.4 8 E 7-8 7-8 yellow
F 1 6 – 7 300L – 450L 1 – 2.4 10 F 9 – 10 9 – 10 blue
G 1 6 – 7 300L – 450 L 1 – 2.4 12 G 11-12 11-12 blue/ green
H 1 6 – 7 430L – 530L 1 – 2.4 14 H 13-14 13-14 green
I 1 6 – 7 430L – 530L 1 – 2.4 16 I 15-16 15-16 orange
J 1 6 – 8 430L – 530L 1 – 2.4 18 J 17 17 turquoise
K 2 7 – 8 510L – 620L 2.5 – 3.5 18 J 17 18 turquoise
L 2 7 – 8 510L – 620L 2.5 – 3.5 20 K 18 19 – 20 purple
M 2 7 – 8 530L – 810L 2.5 – 3.5 24 L 19 21 gold
N 2 7 – 8 530L-810L 2.5 – 3.5 28 L 20 22 gold
O 2 7 – 8 600L – 850L 2.5 – 3.5 28 M 20 22 gold
P 2 7 – 8 600L – 850 L 2.5 – 3.5 28 M 28 22 gold
Q 3 8 – 9 660L – 930L 3.6 – 4.2 30 N 30 23 silver
R 3 8 – 9 660L – 930L 3.6 – 4.2 30 N 30 23 silver
S 3 8 – 9 790L – 940L 3.6 – 4.2 34 O 34 24 silver
T 3 8 – 9 790L – 940L 3.6 – 4.2 38 P 38 25 emerald
U 4 8 – 11 820L – 1030L 4.3 – 4.9 40 Q 40 26 emerald
V 4 9 – 11 820L – 1030L 4.3 – 4.9 40 R 40 26 emerald
W 4 9 – 11 820L – 1030L 4.3 – 4.9 40 S 40 27 ruby
X 5 9 – 11 890L – 1080L 5.0 – 5.5 40 S 40 28 sapphire
Y 5 9 – 11 890L – 1080L 5.0 – 5.5 40 T 40 29 sapphire
Z 5 9 – 11 890L – 1080L 5.0 – 5.5 50 U-V N/A 30 sapphire
Z1 5+ 9 – 11+ 920L – 1120L 5.6 – 6.3 60 W-X N/A N/A
Z2 5+ 9 – 11+ 920L – 1120L 6.4 – 6.9 70+ Y-Z N/A N/A

Criteria for Leveling Reading A-Z Books

According to the Reading A-Z site, here are the criteria for leveling Reading A-Z Books.

    • Word count
    • Number of different words
    • Ratio of different words to total words
    • Number of high-frequency words
    • Ratio of high-frequency words to total words
    • Number of low-frequency words to total words
    • Ratio of low-frequency words to total words
    • Sentence length
    • Sentence complexity
    • Predictability
    • Language pattern and repetition
    • Print size, spacing and number of words per page
    • Illustration support
    • Concept load
    • Topic familiarity

More About Learning A-Z Text Leveling System

As explained on the Reading A-Z site, the proprietary Learning A-Z Text Leveling System was developed over ten years with input from teachers and instructional experts. There are thousands of books which range in difficulty from simple sentences to complex novels and academic texts which were put into the system to make developmentally suitable levels for students.

The leveling criteria which are used by the Text Leveling System accurately and reliably measure the complexity of text to be able to support differentiated instruction. The Text Leveling System at Learning A-Z follows the guidelines for determining the complexity of text which is outlined in national  and state standards.

The Standards demand an evaluation of student reading materials in three areas of text complexity. Those are qualitative measures, quantitative measures, and reader and task considerations.

Also, as we know that in Raz-Kids, there are resources in Spanish. So, how about the Spanish Text Leveling System? It considers the unique features of the Spanish language. To create accurate levels for students learning to read in Spanish, the leveling criteria was adjusted and modified accordingly.

Now, how are texts leveled? According to the Reading A-Z site, every text assigned a Learning A-Z level goes through a strenuous review process. It is done to ensure accurate and reliable leveling results.

    • 1st Step
      The first step is that a Leveling Expert reviews the text and the applicable qualitative measures.
    • 2nd Step
      In the second step, the text and qualitative measures are inserted into the Learning A-Z Text Leveling System which scores the quantitative and qualitative measures.
    • 3rd Step
      In this step, a Leveling Expert reviews the results.
    • 4th Step
      In the 4th step, the results are confirmed by a second, and sometimes third, Leveling Expert.
    • 5th Step
      In the 5th step, the text is assigned a Learning A-Z level officially.

That’s the explanation about the Reading A-Z leveling system. You can read more about it by accessing the website of Reading A-Z.

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