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81SCORE

Breakthrough in Beginning Reading and Writing: The Evidence-Based Approach to Pinpointing Students' Needs and Delivering Targeted Instruction

Amazon

81SCOREGreat dealDeal Score 81/100 · High confidence

$45.04$81.52typical price-45%

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DDD Buy Intelligence

45% below its 90-day average ($81.52); 4.2★ across 16 reviews.

✓ DDD VerifiedVerified 2 hours ago
  • Price checked
  • Seller checked
  • Historical comparison completed
  • Product information matched (not yet)
  • Availability checked
  • Discount claim analyzed
Current price
$45.04
Typical price (90-day avg)
$81.52
30-day average
$49.73
Lowest recorded
Not enough data yet
Product rating
4.2★ · 16 reviews
Seller
Amazon marketplace listing
Availability
in stock
45% belowDDD True Discount — vs. its 90-day/30-day average

Why this score

FactorPointsEvidence
Historical price25/2545% below its 90-day average ($81.52)
True discount20/2045% off its typical price
Lowest-price proximity—/15No recorded low yet
Product quality6.8/154.2★ across 16 reviews
Seller trust9/10Amazon marketplace listing
Competitor price—/5No other retailers tracked yet
Community—/5No community votes yet
Availability4/5in stock

High confidence: this score is based on 5 of 8 evidence types (75% of the maximum weight). Missing: lowest-price proximity, competitor price, community. How Deal Score works

no price history chart yet — we record this price daily from now on

Price tracked via Keepa's Amazon price-history data; price and availability are set by Amazon and can change.

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