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Description
Bruchrechenuhr magn. (Fraction Clock)Bruchrechenuhr magnetisch (Fraction Clock) 2 Zifferbltter (Durchmesser 13 cm) mit je einem Stunden und Minutenzeiger 63 verschiedenfarbige, magnetische Bruchteile (Durchmesser 10 cm) Bruchteile: 1 1 = 60 min, 1 2 = 30 min, 1 3 = 20 min, 1 4 = 15 min, 1 5 = 12 min, 1 6 = 10 min, 1 10 = 6 min, 1 12 = 5 min und 1 20 = 3 min magnethaftendes Zusatzmaterial zum Ablesen, Stellen und Rechnen mit Uhrzeiten und zum operativen Handeln mit Minuten als Bruchteile
Bruchrechenuhr magnetisch (Fraction Clock)
- 2 Zifferblätter (Durchmesser 13 cm) mit je einem Stunden- und Minutenzeiger
- 63 verschiedenfarbige, magnetische Bruchteile (Durchmesser 10 cm)
- Bruchteile: 1/1 = 60 min, 1/2 = 30 min, 1/3 = 20 min, 1/4 = 15 min, 1/5 = 12 min, 1/6 = 10 min, 1/10 = 6 min, 1/12 = 5 min und 1/20 = 3 min
- magnethaftendes Zusatzmaterial zum Ablesen, Stellen und Rechnen mit Uhrzeiten und zum operativen Handeln mit Minuten als Bruchteile einer Stunde.
- Eigene Erfahrungen zum Thema einbeziehen
- Zeiger (Stunden- und Minutenzeiger) und Zahlen auf der Uhr benennen
- Verstehen, warum jede Stunde doppelt belegt ist (Tag hat 24 Stunden)
- Verknüpfen von Tageszeiten mit typischen Tätigkeiten (z.B. morgens- frühstücken)
- Zwischen Zeitpunkt und Zeitspanne unterscheiden
- Einfache Zeitspannen über Anfangs- und Endzeitpunkt bestimmen
- Mit den Zeigern der Uhr volle Stunden, halbe Stunden und Viertelstunden anzeigen
- Uhrzeiten ablesen und auf verschiedene Weisen benennen
- Größen der Zeit in verschiedene Einheiten umrechnen
- Uhrzeiten stellen und aufschreiben
- Messergebnisse mit Maßzahl und standardisierten Maßeinheiten angeben
- Sachaufgaben erkennen und berechnen
- Handlungs- und Tätigkeitsmöglichkeiten im individuellen Leistungsniveau
- Mit Brüchen als Maßzahlen von Größen arbeiten
- Gängige Stundenbrüche wiederholen
- Berechnungseinheit verstehen (60 Minuten ergeben 1h, jede Minute entspricht dem Sechzigstel (1/60) einer Stunde
- Minuten als Bruchteile der Stunde berechnen
- Mit Brüchen in Sachzusammenhängen arbeiten
Artikelverpackung:
Maße: 17 x 16 x 3cm
Gewicht: 0,324kg
Achtung! Nicht geeignet für Kinder unter 3 Jahren. Kleinteile!
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4.3 ★★★★★
Based on 168 reviews
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Product Reviews
★★★★★ 3
Not as good as I expected
When it first came, the box fell apart as I was taking it out, and a lot of some kind of dirt or sand kept falling out all over my table and floor. I had the take the entire thing apart and thoroughly wash it.
After drying age reassembling it, I tried it on my portafilter that came with my Breville Barista Express, but, somehow, it doesn't always make the tamping level. You would think with the ridge that rests on the side of the portafilter that it would force it to remain level, but, somehow, it doesn't, at least not consistently. It also has varying lengths (heights, or depths), and a single spring tension, so you may still over tamping or under-tamp. I was expecting it would have a censor that would just detect once it reached 30 lbs of force and cut off after that, similar to a torque screwdriver, but that's not what this is.
I'll still give it 3 stars because, despite the problems mentioned above, it at least produces some amount of consistency, even if that isn't measurable; but, I can't give it 5 stars because of those issues mentioned above.
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Reviewed in the United States on January 7, 2025
★★★★★ 5
This is the one.
Size: 58.3mm, Color: Black
As an el Supremo Coffee Geek, I've wasted money on lots of different tampers. Save your money and buy this one or it's equivalent. This thing is heavy duty, solid, well-made, self-leveling, tamps at 30 pounds and is fool-proof even for fools. Also, it's a palm tamper meaning more fun and more satisfying to use as you prep the puck for your morning buzz. Buy it. You will thank me.
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Reviewed in the United States on March 30, 2024
★★★★★ 5
Super easy to use and takes the guess-work out of getting even pressure on the grounds
Size: 58.3mm, Color: Black, Size: 58.3mm, Color: Black
I have been using a hand tamper for many years and have a good idea of the pressure I am applying to the grounds in the portafilter. I honestly considered spring tampers to be a bit silly. But this tamper really does take the guess-work out of pressing the coffee grounds. The shroud helps guide the press so that pressure is applied even and flat across the surface. With the manual tamper, there will be some play when pressing, or some unevenness in pressure. This is especially true when cranking out many espressos during a breakfast party with friends. Having the spring tamper makes quick work of turning out a lot of coffees with consistency.
There are no instructions for taking this tamper apart to clean inside, and you may not really need to do that very often. After each use, just pull back the shroud (the black piece that moves up and down) and wipe off the tamper (the shiny steel part). This will help prevent grounds from working their way inside. If you do want to take it apart, it’s easy. Pull back the shroud and unscrew the tamper. It will come apart into three pieces. Wipe the pieces off and reassemble. Super quick and easy.
This tamper is very heavy. My scale shows 656 g (about a pound and a half). It fits the portafilter exactly, with no slop. Just place on top of grounds and press!. Don’t even worry about pressure, just push down all the way. Overall I had fun using this tamper versus my manual one. And since I make myself a cappuccino very early in the morning, I don’t have to be very awake to get a good pack on the grounds and get my coffee fast!
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Reviewed in the United States on January 10, 2024
★★★★★ 5
Great upgrade
Size: 54mm Fits Breville Barista/Bambino/Infuser
I just got a Breville barista express for Christmas and was searching for upgraded tools. I stumbled across this accessory kit and was worried about the quality. I’m pleased to say I’ve very happy with the quality for the price that you get these for, all the tools are heavy and feel sturdy. My coffee is much better not. This fits the barista express perfect. The metal design is very nice in the hands and easy to use. Functions exactly as I would expect. Overall great buy for anyone looking for an affordable upgrade.
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Reviewed in the United States on January 20, 2026
★★★★★ 5
Quality well made kit, happy with my purchase
Size: 54mm Fits Breville Barista/Bambino/Infuser
I am so glad I went ahead and purchased this 7 piece espresso accessories kit! All the tools included are very well made. The tamper is exceptional, sometimes the spring can get misaligned, as I have read with pretty much all tampers, the set is made Well. I have not had any problems. I'm very well satisfied with the upgrade. The appearance is quality and feels heavy and expensive. I searched for many of these espresso accessory kits, and I'm glad that I went with this one.
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Reviewed in the United States on April 17, 2026